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Finding the Fourth Proportional to 14,793.90, 22,190.85 and 13,821.90

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Solution

The fourth proportional to 14,793.90, 22,190.85 and 13,821.90 is: 20,732.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,793.90 : 22,190.85 = 13,821.90 : x
  2. Step 2: Convert to fraction form
    14,793.90/22,190.85 = 13,821.90/x
  3. Step 3: Cross multiply
    14,793.90x = 22,190.85 × 13,821.90
  4. Step 4: Simplify right side
    14,793.90x = 306,719,709.62
  5. Step 5: Solve for x
    x = 306,719,709.62/14,793.90
  6. Step 6: Final answer
    x = 20,732.85

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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.