Answer
$\frac{\frac{3}{2}}{10}=\frac{\frac{3}{4}}{5}$
Work Step by Step
x is to y is the same as $\frac{x}{y}$
$1\frac{1}{2}$ cups milk is to 10 bagels as $\frac{3}{4}$ cup milk is to 5 bagels is the same as $\frac{\frac{3}{2}}{10}=\frac{\frac{3}{4}}{5}$