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Finding the Fourth Proportional to 68,881.52, 95,052.62 and 38,664.11

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Solution

The fourth proportional to 68,881.52, 95,052.62 and 38,664.11 is: 53,354.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,881.52 : 95,052.62 = 38,664.11 : x
  2. Step 2: Convert to fraction form
    68,881.52/95,052.62 = 38,664.11/x
  3. Step 3: Cross multiply
    68,881.52x = 95,052.62 × 38,664.11
  4. Step 4: Simplify right side
    68,881.52x = 3,675,124,286.88
  5. Step 5: Solve for x
    x = 3,675,124,286.88/68,881.52
  6. Step 6: Final answer
    x = 53,354.29

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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.