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Finding the Fourth Proportional to 39,997.91, 55,194.90 and 24,890.10

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Solution

The fourth proportional to 39,997.91, 55,194.90 and 24,890.10 is: 34,346.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,997.91 : 55,194.90 = 24,890.10 : x
  2. Step 2: Convert to fraction form
    39,997.91/55,194.90 = 24,890.10/x
  3. Step 3: Cross multiply
    39,997.91x = 55,194.90 × 24,890.10
  4. Step 4: Simplify right side
    39,997.91x = 1,373,806,280.17
  5. Step 5: Solve for x
    x = 1,373,806,280.17/39,997.91
  6. Step 6: Final answer
    x = 34,346.95

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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.