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Finding the Fourth Proportional to 71,626.68, 98,845.11 and 39,796.92

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Solution

The fourth proportional to 71,626.68, 98,845.11 and 39,796.92 is: 54,919.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,626.68 : 98,845.11 = 39,796.92 : x
  2. Step 2: Convert to fraction form
    71,626.68/98,845.11 = 39,796.92/x
  3. Step 3: Cross multiply
    71,626.68x = 98,845.11 × 39,796.92
  4. Step 4: Simplify right side
    71,626.68x = 3,933,730,935.06
  5. Step 5: Solve for x
    x = 3,933,730,935.06/71,626.68
  6. Step 6: Final answer
    x = 54,919.91

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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.