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Finding the Fourth Proportional to 22,402.60, 33,539.10 and 20,069.80

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Solution

The fourth proportional to 22,402.60, 33,539.10 and 20,069.80 is: 30,046.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,402.60 : 33,539.10 = 20,069.80 : x
  2. Step 2: Convert to fraction form
    22,402.60/33,539.10 = 20,069.80/x
  3. Step 3: Cross multiply
    22,402.60x = 33,539.10 × 20,069.80
  4. Step 4: Simplify right side
    22,402.60x = 673,123,029.18
  5. Step 5: Solve for x
    x = 673,123,029.18/22,402.60
  6. Step 6: Final answer
    x = 30,046.65

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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.