The following is the recipe to make 6 cups of Perfect Lemonade: 1 cup sugar, 1 cup water (for the simple syrup), 1 cup lemon juice, 4 cups cold water (to dilute). You want to analyze the relationship between the number of cups of sugar and the number of cups of lemonade. Set up a proportion using the ratio of cups of sugar to cups of lemonade, write an equation for the number of cups of sugar based on the number of cups of lemonade using your proportion.