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Finding the Fourth Proportional to 3,339.26, 5,009 and 1,147.97

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Solution

The fourth proportional to 3,339.26, 5,009 and 1,147.97 is: 1,721.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,339.26 : 5,009 = 1,147.97 : x
  2. Step 2: Convert to fraction form
    3,339.26/5,009 = 1,147.97/x
  3. Step 3: Cross multiply
    3,339.26x = 5,009 × 1,147.97
  4. Step 4: Simplify right side
    3,339.26x = 5,750,181.73
  5. Step 5: Solve for x
    x = 5,750,181.73/3,339.26
  6. Step 6: Final answer
    x = 1,721.99

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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.