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Finding the Fourth Proportional to 33,279.46, 49,890.02 and 12,517.54

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Solution

The fourth proportional to 33,279.46, 49,890.02 and 12,517.54 is: 18,765.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,279.46 : 49,890.02 = 12,517.54 : x
  2. Step 2: Convert to fraction form
    33,279.46/49,890.02 = 12,517.54/x
  3. Step 3: Cross multiply
    33,279.46x = 49,890.02 × 12,517.54
  4. Step 4: Simplify right side
    33,279.46x = 624,500,320.95
  5. Step 5: Solve for x
    x = 624,500,320.95/33,279.46
  6. Step 6: Final answer
    x = 18,765.34

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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.