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Finding the Fourth Proportional to 29,811.20, 44,722.20 and 14,982.80

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Solution

The fourth proportional to 29,811.20, 44,722.20 and 14,982.80 is: 22,476.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,811.20 : 44,722.20 = 14,982.80 : x
  2. Step 2: Convert to fraction form
    29,811.20/44,722.20 = 14,982.80/x
  3. Step 3: Cross multiply
    29,811.20x = 44,722.20 × 14,982.80
  4. Step 4: Simplify right side
    29,811.20x = 670,063,778.16
  5. Step 5: Solve for x
    x = 670,063,778.16/29,811.20
  6. Step 6: Final answer
    x = 22,476.91

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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.