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Finding the Fourth Proportional to 5,978.56, 8,250.44 and 3,326

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Solution

The fourth proportional to 5,978.56, 8,250.44 and 3,326 is: 4,589.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,978.56 : 8,250.44 = 3,326 : x
  2. Step 2: Convert to fraction form
    5,978.56/8,250.44 = 3,326/x
  3. Step 3: Cross multiply
    5,978.56x = 8,250.44 × 3,326
  4. Step 4: Simplify right side
    5,978.56x = 27,440,963.44
  5. Step 5: Solve for x
    x = 27,440,963.44/5,978.56
  6. Step 6: Final answer
    x = 4,589.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.