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Finding the Fourth Proportional to 22,480.56, 33,702 and 12,484.76

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Solution

The fourth proportional to 22,480.56, 33,702 and 12,484.76 is: 18,716.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,480.56 : 33,702 = 12,484.76 : x
  2. Step 2: Convert to fraction form
    22,480.56/33,702 = 12,484.76/x
  3. Step 3: Cross multiply
    22,480.56x = 33,702 × 12,484.76
  4. Step 4: Simplify right side
    22,480.56x = 420,761,381.52
  5. Step 5: Solve for x
    x = 420,761,381.52/22,480.56
  6. Step 6: Final answer
    x = 18,716.68

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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.