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Solve the proportion


  1. Solve the proportion. Round to the nearest hundredth.
    A management consulting firm recommends that the ratio of middle-management salaries to management trainee salaries be 4:3. Using this recommendation, what is the annual middle-management salary (in dollars) if the annual management trainee salary is $48,000?

    The dosage of a cold medication is 2 mg for every 80 lb of body weight. How many milligrams of this medication are required for a person who weighs 180 lb?

    Solve. (See Example 1 in this section.)

    Approximately 2,080,000 oz of gold went into the manufacturing of electronic equipment in a certain country in 1 year. This was 16% of all the gold mined in that country that year. How many ounces of gold were mined in that country that year?

    A recent survey showed that 22.8 million adults have cut the cord on cable TV services, a 30% increase from the previous year. If this trend continues, how many millions of adults can be expected to cut the cord next year?

    Your employer agrees to give you a 3% raise after 1 year on the job, a 4% raise the next year, and a 5% raise the following year. Is your salary after the third year greater than, less than, or the same as it would be if you had received a 4% raise each year?

    Write the percent as a decimal and as a fraction.


    During a recent year, charitable contributions in the United States totaled $310 billion. The following graph shows to whom this money was donated.

    A circle graph titled "Recipients of charitable contributions in the United States" has 4 unequal sectors. The 4 sectors are labeled as follows.
    • Religion, 31%
    • Health, 9%
    • Education, 15%
    • Other, 45%
    Determine how much money (in billions of dollars) was donated to religious organizations.
    The following table shows the estimated number of millionaire households (households with a net worth of at least $1 million, not including primary residence) in a certain country for selected years.
    Year Millionaire Households
    2015 9,100,000
    2016 9,370,000
    2017 9,620,000
    2018 9,960,000
    What is the percentage increase in the estimated number of millionaire households from 2017 to 2018? Round to the nearest tenth of a percent.
    If the percentage increase between 2017 and 2018 continued for 2018 and 2019, how many millionaire households would there be in 2019? Round to the nearest ten thousand.
     millionaire households

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