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Finding the Fourth Proportional to 20,793.70, 29,169.50 and 20,793.70

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Solution

The fourth proportional to 20,793.70, 29,169.50 and 20,793.70 is: 29,169.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,793.70 : 29,169.50 = 20,793.70 : x
  2. Step 2: Convert to fraction form
    20,793.70/29,169.50 = 20,793.70/x
  3. Step 3: Cross multiply
    20,793.70x = 29,169.50 × 20,793.70
  4. Step 4: Simplify right side
    20,793.70x = 606,541,832.15
  5. Step 5: Solve for x
    x = 606,541,832.15/20,793.70
  6. Step 6: Final answer
    x = 29,169.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.