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Finding the Fourth Proportional to 17,319.22, 25,978.84 and 4,171.59

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Solution

The fourth proportional to 17,319.22, 25,978.84 and 4,171.59 is: 6,257.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,319.22 : 25,978.84 = 4,171.59 : x
  2. Step 2: Convert to fraction form
    17,319.22/25,978.84 = 4,171.59/x
  3. Step 3: Cross multiply
    17,319.22x = 25,978.84 × 4,171.59
  4. Step 4: Simplify right side
    17,319.22x = 108,372,918.40
  5. Step 5: Solve for x
    x = 108,372,918.40/17,319.22
  6. Step 6: Final answer
    x = 6,257.38

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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.