Which proportion could you use to convert 10 pints to fluid ounces?

1 pint is equal to 16 fluid ounces.

To convert 10 pints to fluid ounces, you can use the proportion:

1 pint / 16 fluid ounces = 10 pints / x fluid ounces

Cross-multiplying, you get:

1 * x = 16 * 10

x = 160 fluid ounces

Therefore, the proportion to convert 10 pints to fluid ounces is 1 pint : 16 fluid ounces.