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Finding the Fourth Proportional to 22,374.80, 33,562.20 and 20,147.60

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Solution

The fourth proportional to 22,374.80, 33,562.20 and 20,147.60 is: 30,221.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,374.80 : 33,562.20 = 20,147.60 : x
  2. Step 2: Convert to fraction form
    22,374.80/33,562.20 = 20,147.60/x
  3. Step 3: Cross multiply
    22,374.80x = 33,562.20 × 20,147.60
  4. Step 4: Simplify right side
    22,374.80x = 676,197,780.72
  5. Step 5: Solve for x
    x = 676,197,780.72/22,374.80
  6. Step 6: Final answer
    x = 30,221.40

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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.