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Finding the Fourth Proportional to 18,338.55, 27,472.46 and 10,948.92

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Solution

The fourth proportional to 18,338.55, 27,472.46 and 10,948.92 is: 16,402.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,338.55 : 27,472.46 = 10,948.92 : x
  2. Step 2: Convert to fraction form
    18,338.55/27,472.46 = 10,948.92/x
  3. Step 3: Cross multiply
    18,338.55x = 27,472.46 × 10,948.92
  4. Step 4: Simplify right side
    18,338.55x = 300,793,712.00
  5. Step 5: Solve for x
    x = 300,793,712.00/18,338.55
  6. Step 6: Final answer
    x = 16,402.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.