Explain step by step How do we get from here mv pi2 N2900Eba

Explain step by step How do we get from here: (mv pi^2 N^2/900)/{Eba^3/4l^3 - 33/140 abl P (2 pi N/60)^2} to this equation: mvl^3N^2/22.7973Eba^3 - 0.2357 pabl^4N^2 I understand the solution, but where does the 22.7973 come from? Thank you!

Solution

The 22.7973 is :900/(4pi ^2)

Note that l^3 can be taken out of the denominator to the numerator

And : pi^2/900 from numerator is taken out and multiplies in denominator as: 900/pi^2

Eba^3/l^3 now becomes: 900Eba^3/94pi^2)=22.79073 Eba^3