# Chapter 5 - Ratio and Proportion - 5.1 Ratios - 5.1 Exercises - Page 338: 50

$\frac{92}{21}$

#### Work Step by Step

Percheron’s height to its prehistoric ancestor’s height As per Values given 5$\frac{3}{4}$ ft to 15$\frac{3}{4}$ in. To compare in inch we need to multiply numerator by 12. (5$\frac{3}{4}$ ft)/(15$\frac{3}{4}$ in) =$\frac{23}{4}$ ft/$\frac{63}{4}$ in×$\frac{12in}{1ft}$ = $\frac{23}{4}$× $\frac{4}{63}$× $\frac{12}{1}$= $\frac{92}{21}$

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