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Finding the Fourth Proportional to 27,909.44, 41,867.04 and 8,187.92

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Solution

The fourth proportional to 27,909.44, 41,867.04 and 8,187.92 is: 12,282.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,909.44 : 41,867.04 = 8,187.92 : x
  2. Step 2: Convert to fraction form
    27,909.44/41,867.04 = 8,187.92/x
  3. Step 3: Cross multiply
    27,909.44x = 41,867.04 × 8,187.92
  4. Step 4: Simplify right side
    27,909.44x = 342,803,974.16
  5. Step 5: Solve for x
    x = 342,803,974.16/27,909.44
  6. Step 6: Final answer
    x = 12,282.72

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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.