Basic College Mathematics (9th Edition)

Published by Pearson
ISBN 10: 0321825535
ISBN 13: 978-0-32182-553-7

Chapter 5 - Ratio and Proportion - 5.3 Proportions - 5.3 Exercises: 3

Answer

$\frac{200 adults}{450 children}=\frac{4 adults}{9 children}$

Work Step by Step

We are given that 200 adults is to 450 children as 4 adults is to 9 children. In order to write this as a proportion, we can write both relations as fractions. 200 adults is to 450 children can be written as $\frac{200 adults}{450 children}$ 4 adults is to 9 children can be written as $\frac{4 adults}{9 children}$ Next, we can set both fractions equal to each other, which gives us a proportional relationship. $\frac{200 adults}{450 children}=\frac{4 adults}{9 children}$ Since the units in the numerators and denominators are different, we do not simplify any further.
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