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Finding the Fourth Proportional to 13,793.80, 20,733.90 and 13,534.60

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Solution

The fourth proportional to 13,793.80, 20,733.90 and 13,534.60 is: 20,344.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,793.80 : 20,733.90 = 13,534.60 : x
  2. Step 2: Convert to fraction form
    13,793.80/20,733.90 = 13,534.60/x
  3. Step 3: Cross multiply
    13,793.80x = 20,733.90 × 13,534.60
  4. Step 4: Simplify right side
    13,793.80x = 280,625,042.94
  5. Step 5: Solve for x
    x = 280,625,042.94/13,793.80
  6. Step 6: Final answer
    x = 20,344.29

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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.