3. A loan of 40,000 is being repaid by a 30-year increasing annuity-immediate. The initial payment is k, and each subsequent payment is k larger than the preceding payment. Determine the principal outstanding immediately after the ninth payment, using an annual effective interest rate of 4%. 3. A loan of 40,000 is being repaid by a 30-year increasing annuity-immediate. The initial payment is k, and each subsequent payment is k larger than the preceding payment. Determine the principal outstanding immediately after the ninth payment, using an annual effective interest rate of 4%. a 48250 b. 47500 48500 d 47750 e 48000