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Finding the Fourth Proportional to 6,459.75, 9,691.25 and 1,842.75

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Solution

The fourth proportional to 6,459.75, 9,691.25 and 1,842.75 is: 2,764.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,459.75 : 9,691.25 = 1,842.75 : x
  2. Step 2: Convert to fraction form
    6,459.75/9,691.25 = 1,842.75/x
  3. Step 3: Cross multiply
    6,459.75x = 9,691.25 × 1,842.75
  4. Step 4: Simplify right side
    6,459.75x = 17,858,550.94
  5. Step 5: Solve for x
    x = 17,858,550.94/6,459.75
  6. Step 6: Final answer
    x = 2,764.59

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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.