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Finding the Fourth Proportional to 17,141.10, 25,711.65 and 11,236.20

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Solution

The fourth proportional to 17,141.10, 25,711.65 and 11,236.20 is: 16,854.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,141.10 : 25,711.65 = 11,236.20 : x
  2. Step 2: Convert to fraction form
    17,141.10/25,711.65 = 11,236.20/x
  3. Step 3: Cross multiply
    17,141.10x = 25,711.65 × 11,236.20
  4. Step 4: Simplify right side
    17,141.10x = 288,901,241.73
  5. Step 5: Solve for x
    x = 288,901,241.73/17,141.10
  6. Step 6: Final answer
    x = 16,854.30

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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.