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Finding the Fourth Proportional to 91,997.52, 126,960.17 and 51,711.16

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Solution

The fourth proportional to 91,997.52, 126,960.17 and 51,711.16 is: 71,363.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,997.52 : 126,960.17 = 51,711.16 : x
  2. Step 2: Convert to fraction form
    91,997.52/126,960.17 = 51,711.16/x
  3. Step 3: Cross multiply
    91,997.52x = 126,960.17 × 51,711.16
  4. Step 4: Simplify right side
    91,997.52x = 6,565,257,664.50
  5. Step 5: Solve for x
    x = 6,565,257,664.50/91,997.52
  6. Step 6: Final answer
    x = 71,363.42

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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.