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Finding the Fourth Proportional to 68,899.32, 95,073.69 and 38,687.94

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Solution

The fourth proportional to 68,899.32, 95,073.69 and 38,687.94 is: 53,385.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,899.32 : 95,073.69 = 38,687.94 : x
  2. Step 2: Convert to fraction form
    68,899.32/95,073.69 = 38,687.94/x
  3. Step 3: Cross multiply
    68,899.32x = 95,073.69 × 38,687.94
  4. Step 4: Simplify right side
    68,899.32x = 3,678,205,214.30
  5. Step 5: Solve for x
    x = 3,678,205,214.30/68,899.32
  6. Step 6: Final answer
    x = 53,385.22

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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.