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Finding the Fourth Proportional to 22,265.92, 30,726.56 and 12,834.88

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Solution

The fourth proportional to 22,265.92, 30,726.56 and 12,834.88 is: 17,711.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,265.92 : 30,726.56 = 12,834.88 : x
  2. Step 2: Convert to fraction form
    22,265.92/30,726.56 = 12,834.88/x
  3. Step 3: Cross multiply
    22,265.92x = 30,726.56 × 12,834.88
  4. Step 4: Simplify right side
    22,265.92x = 394,371,710.41
  5. Step 5: Solve for x
    x = 394,371,710.41/22,265.92
  6. Step 6: Final answer
    x = 17,711.90

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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.