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Finding the Fourth Proportional to 22,104.60, 30,520.62 and 15,028.44

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Solution

The fourth proportional to 22,104.60, 30,520.62 and 15,028.44 is: 20,750.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,104.60 : 30,520.62 = 15,028.44 : x
  2. Step 2: Convert to fraction form
    22,104.60/30,520.62 = 15,028.44/x
  3. Step 3: Cross multiply
    22,104.60x = 30,520.62 × 15,028.44
  4. Step 4: Simplify right side
    22,104.60x = 458,677,306.43
  5. Step 5: Solve for x
    x = 458,677,306.43/22,104.60
  6. Step 6: Final answer
    x = 20,750.31

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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.