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Finding the Fourth Proportional to 17,651.80, 26,469.15 and 10,258.39

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Solution

The fourth proportional to 17,651.80, 26,469.15 and 10,258.39 is: 15,382.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,651.80 : 26,469.15 = 10,258.39 : x
  2. Step 2: Convert to fraction form
    17,651.80/26,469.15 = 10,258.39/x
  3. Step 3: Cross multiply
    17,651.80x = 26,469.15 × 10,258.39
  4. Step 4: Simplify right side
    17,651.80x = 271,530,863.67
  5. Step 5: Solve for x
    x = 271,530,863.67/17,651.80
  6. Step 6: Final answer
    x = 15,382.62

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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.