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Finding the Fourth Proportional to 71,974.10, 107,951.70 and 22,059.20

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Solution

The fourth proportional to 71,974.10, 107,951.70 and 22,059.20 is: 33,085.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,974.10 : 107,951.70 = 22,059.20 : x
  2. Step 2: Convert to fraction form
    71,974.10/107,951.70 = 22,059.20/x
  3. Step 3: Cross multiply
    71,974.10x = 107,951.70 × 22,059.20
  4. Step 4: Simplify right side
    71,974.10x = 2,381,328,140.64
  5. Step 5: Solve for x
    x = 2,381,328,140.64/71,974.10
  6. Step 6: Final answer
    x = 33,085.90

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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.