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Finding the Fourth Proportional to 64,769.52, 89,382.20 and 36,475.68

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Solution

The fourth proportional to 64,769.52, 89,382.20 and 36,475.68 is: 50,336.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,769.52 : 89,382.20 = 36,475.68 : x
  2. Step 2: Convert to fraction form
    64,769.52/89,382.20 = 36,475.68/x
  3. Step 3: Cross multiply
    64,769.52x = 89,382.20 × 36,475.68
  4. Step 4: Simplify right side
    64,769.52x = 3,260,276,524.90
  5. Step 5: Solve for x
    x = 3,260,276,524.90/64,769.52
  6. Step 6: Final answer
    x = 50,336.59

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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.