Each term in the series is obtained by adding the sum of its digits to the term itself. For example, 32 + (3 + 2) = 37, so the next term is 37 + (3 + 7) = 47.
The series is formed by combining two alternating patterns, where the first pattern adds 7 to its previous terms and the second pattern adds 6. The first pattern gives the sequence 10, 17, 37, and the missing term, while the second pattern gives 11, 25, 32. Following the first pattern, the missing term is calculated as 37 + 10, which equals 47.