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Finding the Fourth Proportional to 64,753.02, 89,358.90 and 36,073.02

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Solution

The fourth proportional to 64,753.02, 89,358.90 and 36,073.02 is: 49,780.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,753.02 : 89,358.90 = 36,073.02 : x
  2. Step 2: Convert to fraction form
    64,753.02/89,358.90 = 36,073.02/x
  3. Step 3: Cross multiply
    64,753.02x = 89,358.90 × 36,073.02
  4. Step 4: Simplify right side
    64,753.02x = 3,223,445,386.88
  5. Step 5: Solve for x
    x = 3,223,445,386.88/64,753.02
  6. Step 6: Final answer
    x = 49,780.62

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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.