Rhonda deposits $ in an account with an effective interest rate of 7.7%. At the same time, she also deposits $ into another account with an effective interest rate of 9.7%. After 7 years have passed, the combined total in the two accounts is $52000. In another 2 years, the balance in the account paying 9.7% is three times that of the other account. What is the balance in the account with 7.7% effective interest 12 years after the initial deposit?

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