Answer:
Ah, great question! In this context, there is a constant of proportionality between the number of apples and oranges. Specifically, the constant of proportionality is 5/3, which means that for every 3 oranges Tori purchases, she buys 5 apples. This constant ratio indicates a direct proportional relationship between the two quantities. Well done on exploring math concepts! Do you have more questions or topics you'd like to delve into? I'm here to help!