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Finding the Fourth Proportional to 22,348.71, 30,842.17 and 12,791.52

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Solution

The fourth proportional to 22,348.71, 30,842.17 and 12,791.52 is: 17,652.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,348.71 : 30,842.17 = 12,791.52 : x
  2. Step 2: Convert to fraction form
    22,348.71/30,842.17 = 12,791.52/x
  3. Step 3: Cross multiply
    22,348.71x = 30,842.17 × 12,791.52
  4. Step 4: Simplify right side
    22,348.71x = 394,518,202.42
  5. Step 5: Solve for x
    x = 394,518,202.42/22,348.71
  6. Step 6: Final answer
    x = 17,652.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.