[tex]\begin{gathered} \text{Constant of proportionality is the ratio betw}en\text{ chocolate and milk, that is} \\ \text{ratio}=\frac{3}{2}=1.5 \\ \\ \text{the units are precisely}\colon \\ \frac{\text{ (tablespoon of cholotare syrup)}}{(\text{cups of milk)}} \end{gathered}[/tex]
