Tank Y, measuring 70 cm by 35 cm by 66 cm, was filled with water to the brim. Water was then poured from Tank Y to Tank Z, which has a base area of 650 cm² until the height of the water level in Tank Z became thrice that of the water level in Tank Y. Find the volume of water in Tank Z, leaving your answer in cubic cm.
Volume of Tank Y
= 70 x 35 x 66
= 161700 cm³ 

Base area of Tank Y 
= 70 x 35
= 2450 cm²

Total base areas
= 2450 + 650 + 650 + 650
= 4400 cm² 

Height of the water level in Tank Y after pouring
= 161700 ÷ 4400
= 36.75 cm

Height of the water level in Tank Z after pouring
= 3 x 36.75 
= 110.25 cm

Volume of water in Tank Z
= 650 x 110.25
= 71662.5 cm³ 

Answer(s): 71662.5 cm³