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Finding the Fourth Proportional to 22,129.60, 33,193.50 and 5,489.68

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Solution

The fourth proportional to 22,129.60, 33,193.50 and 5,489.68 is: 8,234.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,129.60 : 33,193.50 = 5,489.68 : x
  2. Step 2: Convert to fraction form
    22,129.60/33,193.50 = 5,489.68/x
  3. Step 3: Cross multiply
    22,129.60x = 33,193.50 × 5,489.68
  4. Step 4: Simplify right side
    22,129.60x = 182,221,693.08
  5. Step 5: Solve for x
    x = 182,221,693.08/22,129.60
  6. Step 6: Final answer
    x = 8,234.30

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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.