In "A Pattern of Numbers" you were asked to find the relationship between numbers appearing in a pattern. This puzzle uses a similar, yet different, criterion.
Can you discover the relationship between the numbers and figure out what number belongs at the X in this pattern? The same rule applies to each set of numbers in the pattern.

  34  32  36  46  64  75  50  35  34
16  18  14  22   X  40  35  15  20  12