if start with 8.5 bi 11, enlarged need tu be 17.75 bi 24
17.75/8.5=2.0882352...the enlarj raesheeo
or yu kood sae yu enlarj it 100%
2.0882352*11=22.9706, not 24
nu area=17.75*22.971=404.735 sq inch
old area=8.5*11=93.5
area raesheo=404.735/93.5=4.3287
or nu area is 333% bigger