A. Find the missing term to make the proportion true. PER 1) 9:N = 27:15 a.3 b.4 c.5 2) N:8 = 12:32 a.6 b.4 c.3 3) 5:3 = 25:N a.15 b.10 4) 6:n = 8:12 a. 9 b.8 5) m:7 = 6:21 a.4 b.2. c.25 c.7 c.3​