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Finding the Fourth Proportional to 27,165.20, 40,747.80 and 22,791.20

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Solution

The fourth proportional to 27,165.20, 40,747.80 and 22,791.20 is: 34,186.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,165.20 : 40,747.80 = 22,791.20 : x
  2. Step 2: Convert to fraction form
    27,165.20/40,747.80 = 22,791.20/x
  3. Step 3: Cross multiply
    27,165.20x = 40,747.80 × 22,791.20
  4. Step 4: Simplify right side
    27,165.20x = 928,691,259.36
  5. Step 5: Solve for x
    x = 928,691,259.36/27,165.20
  6. Step 6: Final answer
    x = 34,186.80

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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.