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Finding the Fourth Proportional to 64,906.56, 89,575.20 and 36,601.92

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Solution

The fourth proportional to 64,906.56, 89,575.20 and 36,601.92 is: 50,512.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,906.56 : 89,575.20 = 36,601.92 : x
  2. Step 2: Convert to fraction form
    64,906.56/89,575.20 = 36,601.92/x
  3. Step 3: Cross multiply
    64,906.56x = 89,575.20 × 36,601.92
  4. Step 4: Simplify right side
    64,906.56x = 3,278,624,304.38
  5. Step 5: Solve for x
    x = 3,278,624,304.38/64,906.56
  6. Step 6: Final answer
    x = 50,512.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.