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Finding the Fourth Proportional to 71,352.76, 98,472.20 and 39,524.64

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Solution

The fourth proportional to 71,352.76, 98,472.20 and 39,524.64 is: 54,546.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,352.76 : 98,472.20 = 39,524.64 : x
  2. Step 2: Convert to fraction form
    71,352.76/98,472.20 = 39,524.64/x
  3. Step 3: Cross multiply
    71,352.76x = 98,472.20 × 39,524.64
  4. Step 4: Simplify right side
    71,352.76x = 3,892,078,255.01
  5. Step 5: Solve for x
    x = 3,892,078,255.01/71,352.76
  6. Step 6: Final answer
    x = 54,546.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.