Set up a proportion to solve each problem, show all work, and label all answers. 1. The ratio of boys to girls is 3 to 2. If there are 12 boys, how many girls are there? 2. It takes one Super Giant Pizza to feed 3 people. If you invite 36 people, how many pizzas will you need? 3. At a recent party, it cost $9.50 for refreshments for 10 guests.