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Finding the Fourth Proportional to 27,379.91, 41,073.92 and 8,655.71

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Solution

The fourth proportional to 27,379.91, 41,073.92 and 8,655.71 is: 12,984.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,379.91 : 41,073.92 = 8,655.71 : x
  2. Step 2: Convert to fraction form
    27,379.91/41,073.92 = 8,655.71/x
  3. Step 3: Cross multiply
    27,379.91x = 41,073.92 × 8,655.71
  4. Step 4: Simplify right side
    27,379.91x = 355,523,691.44
  5. Step 5: Solve for x
    x = 355,523,691.44/27,379.91
  6. Step 6: Final answer
    x = 12,984.84

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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.