Series 4 6 9 13.5 July 8, 2019 16 32 64 128 Complete the series 4 6 9 13.5 Complete the following series 4 6 9 13.5 Look at this series 4 6 9 13.5 what number should fill the blank Find the next number in the series 4 6 9 13.5 Serial 4 erazanq Սերիա 4 Serjant 4