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Finding the Fourth Proportional to 22,141.92, 30,534.12 and 18,793.92

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Solution

The fourth proportional to 22,141.92, 30,534.12 and 18,793.92 is: 25,917.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,141.92 : 30,534.12 = 18,793.92 : x
  2. Step 2: Convert to fraction form
    22,141.92/30,534.12 = 18,793.92/x
  3. Step 3: Cross multiply
    22,141.92x = 30,534.12 × 18,793.92
  4. Step 4: Simplify right side
    22,141.92x = 573,855,808.55
  5. Step 5: Solve for x
    x = 573,855,808.55/22,141.92
  6. Step 6: Final answer
    x = 25,917.17

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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.