Final answer:
New York and Virginia were needed to ratify the Constitution due to their influence, geographical importance, and economic power.
Step-by-step explanation:
The states needed New York (NY) and Virginia (VA) to ratify the Constitution even after achieving 9/13 states' approval for several reasons:
- NY and VA were influential states that helped in gaining broader acceptance among other states.
- NY and VA were geographically strategic, and their support secured the stability of the union.
- NY and VA were economic powerhouses, and their ratification boosted the nation's financial prospects.
Therefore, the approval of NY and VA played a crucial role in ensuring the success and effectiveness of the Constitution.