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Finding the Fourth Proportional to 17,318.97, 25,978.46 and 4,171.34

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Solution

The fourth proportional to 17,318.97, 25,978.46 and 4,171.34 is: 6,257.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,318.97 : 25,978.46 = 4,171.34 : x
  2. Step 2: Convert to fraction form
    17,318.97/25,978.46 = 4,171.34/x
  3. Step 3: Cross multiply
    17,318.97x = 25,978.46 × 4,171.34
  4. Step 4: Simplify right side
    17,318.97x = 108,364,859.44
  5. Step 5: Solve for x
    x = 108,364,859.44/17,318.97
  6. Step 6: Final answer
    x = 6,257.00

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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.