At an annual effective interest rate of i, i > 0, the following are all equal: (i) the present value of 10,000 at the end of 6 years; (ii) the sum of the present values of 6,000 at the end of year t and 56,000 at the end of year 2t; and 60 THE BASICS OF INTEREST THEORY (iii) 5,000 immediately. Calculate the present value of a payment of 8,000 at the end of year t 3 using the same annual effective interest rate.