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Finding the Fourth Proportional to 64,664.31, 89,244.95 and 36,375.47

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Solution

The fourth proportional to 64,664.31, 89,244.95 and 36,375.47 is: 50,202.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,664.31 : 89,244.95 = 36,375.47 : x
  2. Step 2: Convert to fraction form
    64,664.31/89,244.95 = 36,375.47/x
  3. Step 3: Cross multiply
    64,664.31x = 89,244.95 × 36,375.47
  4. Step 4: Simplify right side
    64,664.31x = 3,246,327,001.38
  5. Step 5: Solve for x
    x = 3,246,327,001.38/64,664.31
  6. Step 6: Final answer
    x = 50,202.76

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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.