A $2017g-$mole pyruvic acid aqueous solution containing $84-$weight $\%(w\%)$ water is added to a $72-w\%$ pyruvic acid aqueous solution to obtain $49-w\%$ pyruvic acid aqueous solution. Find the mean molecular weight of the $2017g-$mole pyruvic acid aqueous solution. Calculate the amounts $(g)$ of the $72-w\%$ pyruvic acid aqueous solution and the $49-w\%$ pyruvic acid aqueous solution to obtain $49-w\%$ pyruvic acid aqueous solution, using the Chemical Engineering Handbook