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Finding the Fourth Proportional to 79,487.92, 118,972.27 and 58,422.39

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Solution

The fourth proportional to 79,487.92, 118,972.27 and 58,422.39 is: 87,442.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,487.92 : 118,972.27 = 58,422.39 : x
  2. Step 2: Convert to fraction form
    79,487.92/118,972.27 = 58,422.39/x
  3. Step 3: Cross multiply
    79,487.92x = 118,972.27 × 58,422.39
  4. Step 4: Simplify right side
    79,487.92x = 6,950,644,357.13
  5. Step 5: Solve for x
    x = 6,950,644,357.13/79,487.92
  6. Step 6: Final answer
    x = 87,442.78

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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.