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Finding the Fourth Proportional to 40,395.75, 55,747.08 and 22,491.96

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Solution

The fourth proportional to 40,395.75, 55,747.08 and 22,491.96 is: 31,039.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,395.75 : 55,747.08 = 22,491.96 : x
  2. Step 2: Convert to fraction form
    40,395.75/55,747.08 = 22,491.96/x
  3. Step 3: Cross multiply
    40,395.75x = 55,747.08 × 22,491.96
  4. Step 4: Simplify right side
    40,395.75x = 1,253,861,093.48
  5. Step 5: Solve for x
    x = 1,253,861,093.48/40,395.75
  6. Step 6: Final answer
    x = 31,039.43

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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.