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Finding the Third Proportional to 3,838 and 5,761

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Solution

The third proportional to 3,838 and 5,761 is: 8,647.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,838 : 5,761 = 5,761 : x
  2. Step 2: Convert to fraction form
    3,838/5,761 = 5,761/x
  3. Step 3: Cross multiply
    3,838x = 5,761 × 5,761
  4. Step 4: Simplify right side
    3,838x = 33,189,121
  5. Step 5: Solve for x
    x = 33,189,121/3,838
  6. Step 6: Final answer
    x = 8,647.50

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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.