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Finding the Fourth Proportional to 87,697.20, 131,497.20 and 37,768.80

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Solution

The fourth proportional to 87,697.20, 131,497.20 and 37,768.80 is: 56,632.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,697.20 : 131,497.20 = 37,768.80 : x
  2. Step 2: Convert to fraction form
    87,697.20/131,497.20 = 37,768.80/x
  3. Step 3: Cross multiply
    87,697.20x = 131,497.20 × 37,768.80
  4. Step 4: Simplify right side
    87,697.20x = 4,966,491,447.36
  5. Step 5: Solve for x
    x = 4,966,491,447.36/87,697.20
  6. Step 6: Final answer
    x = 56,632.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.