Problem 4-4 Calculating Interest Rates LO 3] Solve for the unknown interest rate in each of the following: (Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.g 32.16.) Present Value Years Future Value 1,501 147,832 324,815 Interest Rate s 775 965 21,000 76,300 1,838 18 21