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Finding the Fourth Proportional to 68,951.56, 95,153.16 and 38,736.88

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Solution

The fourth proportional to 68,951.56, 95,153.16 and 38,736.88 is: 53,456.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,951.56 : 95,153.16 = 38,736.88 : x
  2. Step 2: Convert to fraction form
    68,951.56/95,153.16 = 38,736.88/x
  3. Step 3: Cross multiply
    68,951.56x = 95,153.16 × 38,736.88
  4. Step 4: Simplify right side
    68,951.56x = 3,685,936,540.54
  5. Step 5: Solve for x
    x = 3,685,936,540.54/68,951.56
  6. Step 6: Final answer
    x = 53,456.90

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1.5x scale

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.