Problem 5-4 Calculating Interest Rates (LO3) Solve for the unknown interest rate in each of the following (Do not round intermediate calculations. Enter your answers as a percent rounded to 2 decimal places, e.g., 32.16.): Years Interest Rate 4 % Present Value $ 220 340 37,000 36,261 Future Value $ 270 986 18 19 25 169,819 481,638 Problem 5-5 Calculating the Number of Periods (L04) Solve for the unknown number of years in each of the following (Do not round intermediate calculations and round your answers to 2 decimal places, e.g., 32.16.): Years Present Value $ 490 740 17,700 20,800 Interest Rate 10 % 11 Future Value $ 1,252 1,670 216,050 262,330 16 5 13