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Finding the Fourth Proportional to 11,236.70, 16,841.92 and 8,454.44

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Solution

The fourth proportional to 11,236.70, 16,841.92 and 8,454.44 is: 12,671.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,236.70 : 16,841.92 = 8,454.44 : x
  2. Step 2: Convert to fraction form
    11,236.70/16,841.92 = 8,454.44/x
  3. Step 3: Cross multiply
    11,236.70x = 16,841.92 × 8,454.44
  4. Step 4: Simplify right side
    11,236.70x = 142,389,002.12
  5. Step 5: Solve for x
    x = 142,389,002.12/11,236.70
  6. Step 6: Final answer
    x = 12,671.78

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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.