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Finding the Fourth Proportional to 22,491.92, 33,737.81 and 12,491.97

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Solution

The fourth proportional to 22,491.92, 33,737.81 and 12,491.97 is: 18,737.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,491.92 : 33,737.81 = 12,491.97 : x
  2. Step 2: Convert to fraction form
    22,491.92/33,737.81 = 12,491.97/x
  3. Step 3: Cross multiply
    22,491.92x = 33,737.81 × 12,491.97
  4. Step 4: Simplify right side
    22,491.92x = 421,451,647.93
  5. Step 5: Solve for x
    x = 421,451,647.93/22,491.92
  6. Step 6: Final answer
    x = 18,737.92

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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.