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Finding the Fourth Proportional to 68,895.91, 95,073.24 and 38,680.68

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Solution

The fourth proportional to 68,895.91, 95,073.24 and 38,680.68 is: 53,377.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,895.91 : 95,073.24 = 38,680.68 : x
  2. Step 2: Convert to fraction form
    68,895.91/95,073.24 = 38,680.68/x
  3. Step 3: Cross multiply
    68,895.91x = 95,073.24 × 38,680.68
  4. Step 4: Simplify right side
    68,895.91x = 3,677,497,573.00
  5. Step 5: Solve for x
    x = 3,677,497,573.00/68,895.91
  6. Step 6: Final answer
    x = 53,377.59

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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.