Solving Applications of Proportions
Read this text which discusses real-world examples of how proportions are used. Complete the practice problems and check your answers. These examples are word problems that use proportions.
Exercise
EXAMPLE 6.45
When pediatricians prescribe acetaminophen to children, they prescribe 
milliliters (ml) of acetaminophen for every 
pounds of the child's weight. If Zoe weighs 
pounds, how many milliliters of acetaminophen will her doctor prescribe?
EXAMPLE 6.46
One brand of microwave popcorn has 
calories per serving. A whole bag of this popcorn has 
servings. How many calories are in a whole bag of this microwave popcorn?
EXAMPLE 6.47
Josiah went to Mexico for spring break and changed 
dollars into Mexican pesos. At that time, the exchange rate had 
U.S. is equal to 
Mexican pesos. How many Mexican pesos did he get for his trip?