If a/b = 21/34; b/c = 121/120; c/d = 17/77; e/f = 11/15 and d/e = 14/17 then what is the value of (abc/def)*2?
2*(abc/def) = 2*(a/d)(b/e)(c/f) = 2*(a/b * b/c * c/d)(b/c * c/d * d/e)(c/d * d/e * e/f) = 2*(21/34 * 121/120 * 17/77)*(121/120 * 17/77 * 14/17)*(17/77 * 14/17 * 11/15) = 121/18000
If a/b = 51/54; c/d = 440/493; b/c = 29/32; e/f = 493/608; and d/e = 38/55 then what is the value of (abc/def)*17 = ?