
Concept explainers
To find:The proportion that could be used to solve for each variable and the solution of the proportion.

Answer to Problem 6.5.12EP
The required proportion is
Explanation of Solution
Given information:
The rates: 3 packages at $53.67
7 packages at m
The proportion from the given rates can be written as:
To find the solution of the above proportion, use cross multiplication method.
Apply cross-multiplication on the above proportion and simplify for m .
Divide both sides of the above expression by 3.
Hence, the required proportion is
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