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Finding the Fourth Proportional to 64,778.52, 89,395.29 and 36,097.38

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Solution

The fourth proportional to 64,778.52, 89,395.29 and 36,097.38 is: 49,814.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,778.52 : 89,395.29 = 36,097.38 : x
  2. Step 2: Convert to fraction form
    64,778.52/89,395.29 = 36,097.38/x
  3. Step 3: Cross multiply
    64,778.52x = 89,395.29 × 36,097.38
  4. Step 4: Simplify right side
    64,778.52x = 3,226,935,753.34
  5. Step 5: Solve for x
    x = 3,226,935,753.34/64,778.52
  6. Step 6: Final answer
    x = 49,814.90

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1.5x scale

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.