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Finding the Fourth Proportional to 68,992.62, 95,210.66 and 38,776.17

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Solution

The fourth proportional to 68,992.62, 95,210.66 and 38,776.17 is: 53,511.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,992.62 : 95,210.66 = 38,776.17 : x
  2. Step 2: Convert to fraction form
    68,992.62/95,210.66 = 38,776.17/x
  3. Step 3: Cross multiply
    68,992.62x = 95,210.66 × 38,776.17
  4. Step 4: Simplify right side
    68,992.62x = 3,691,904,737.97
  5. Step 5: Solve for x
    x = 3,691,904,737.97/68,992.62
  6. Step 6: Final answer
    x = 53,511.59

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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.