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Finding the Fourth Proportional to 27,940.71, 41,910.60 and 9,221.97

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Solution

The fourth proportional to 27,940.71, 41,910.60 and 9,221.97 is: 13,832.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,940.71 : 41,910.60 = 9,221.97 : x
  2. Step 2: Convert to fraction form
    27,940.71/41,910.60 = 9,221.97/x
  3. Step 3: Cross multiply
    27,940.71x = 41,910.60 × 9,221.97
  4. Step 4: Simplify right side
    27,940.71x = 386,498,295.88
  5. Step 5: Solve for x
    x = 386,498,295.88/27,940.71
  6. Step 6: Final answer
    x = 13,832.80

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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.