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Finding the Fourth Proportional to 12,171.11, 18,257.48 and 5,934.11

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Solution

The fourth proportional to 12,171.11, 18,257.48 and 5,934.11 is: 8,901.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,171.11 : 18,257.48 = 5,934.11 : x
  2. Step 2: Convert to fraction form
    12,171.11/18,257.48 = 5,934.11/x
  3. Step 3: Cross multiply
    12,171.11x = 18,257.48 × 5,934.11
  4. Step 4: Simplify right side
    12,171.11x = 108,341,864.97
  5. Step 5: Solve for x
    x = 108,341,864.97/12,171.11
  6. Step 6: Final answer
    x = 8,901.56

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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.