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Finding the Fourth Proportional to 22,481.69, 33,726.20 and 8,442.81

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Solution

The fourth proportional to 22,481.69, 33,726.20 and 8,442.81 is: 12,665.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,481.69 : 33,726.20 = 8,442.81 : x
  2. Step 2: Convert to fraction form
    22,481.69/33,726.20 = 8,442.81/x
  3. Step 3: Cross multiply
    22,481.69x = 33,726.20 × 8,442.81
  4. Step 4: Simplify right side
    22,481.69x = 284,743,898.62
  5. Step 5: Solve for x
    x = 284,743,898.62/22,481.69
  6. Step 6: Final answer
    x = 12,665.59

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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.