An industrial compressor presently in production has power of 30 kW. Using standardized preferred numbers from R5 series calculate power of 4 new compressors currently under development, all of which are based on the existing one (scaled up and scaled down versions of the existing one). Two of the new compressors will be smaller versions of the existing one and the other two will be bigger versions. Remember to round off final results of your calculations, but by no more than +/-5% of the calculated value (relative error of reported result should be no bigger than 5% of the calculated value). 

Show calculations for rounding off for verification of the correctness of your rounding off.

 R5, 10, 16, 25, 40, 63, 100 (ISO R5 Standardized series of preferred numbers) 

Privileged numbers in design are 0, 2,5, 8.