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Finding the Fourth Proportional to 64,914.88, 97,382.16 and 20,526.88

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Solution

The fourth proportional to 64,914.88, 97,382.16 and 20,526.88 is: 30,793.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,914.88 : 97,382.16 = 20,526.88 : x
  2. Step 2: Convert to fraction form
    64,914.88/97,382.16 = 20,526.88/x
  3. Step 3: Cross multiply
    64,914.88x = 97,382.16 × 20,526.88
  4. Step 4: Simplify right side
    64,914.88x = 1,998,951,912.46
  5. Step 5: Solve for x
    x = 1,998,951,912.46/64,914.88
  6. Step 6: Final answer
    x = 30,793.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.