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Finding the Fourth Proportional to 12,793.60, 17,735.68 and 12,092.80

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Solution

The fourth proportional to 12,793.60, 17,735.68 and 12,092.80 is: 16,764.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,793.60 : 17,735.68 = 12,092.80 : x
  2. Step 2: Convert to fraction form
    12,793.60/17,735.68 = 12,092.80/x
  3. Step 3: Cross multiply
    12,793.60x = 17,735.68 × 12,092.80
  4. Step 4: Simplify right side
    12,793.60x = 214,474,031.10
  5. Step 5: Solve for x
    x = 214,474,031.10/12,793.60
  6. Step 6: Final answer
    x = 16,764.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.