3. Multiselect One recipe for homemade playdough calls for 4 parts flour, 1 part selt, and 2 parts water. Select all of the mixtures below that are in a proportional relationship with this recipe. (Lesson 2) 8 cups flour, 2 cups salt, 4 cups water 2 cups flour, cup salt, ½ cup water 6 cups flour, 1 cups salt, 3 cups water 10 cups flour, 1 cup salt, 2 cups water