Elementary Technical Mathematics

Published by Brooks Cole
ISBN 10: 1285199197
ISBN 13: 978-1-28519-919-1

Chapter 7 - Section 7.2 - Proportion - Exercises - Page 277: 45



Work Step by Step

Create a proportion using ratios of price:sq ft. $\frac{\$171,000}{1800\ ft^2}=\frac{\$x}{2400\ ft^2}$ Set the product of the means equal to the product of the extremes and solve for the variable. $1800 \times x=171,000\times 2400$ $1800x=410,400,000$ $1800x\div1800=410,400,000\div1800$ $x=228,000$
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