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4, (14 points) Consider a corporate bond (with $1,000 par value) that has 28 years to maturity, 4 % coupon rate, and 5 % yield to maturity (YTM). The interest on this bond is paid semiannually. Find the duration of this bond If the bond's yield to maturity (YTM ) increases by 50 basis points, what will be the new price of the bond? Please use the duration you obtained to determine the new price