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Finding the Third Proportional to 3,952 and 5,617

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Solution

The third proportional to 3,952 and 5,617 is: 7,983.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,952 : 5,617 = 5,617 : x
  2. Step 2: Convert to fraction form
    3,952/5,617 = 5,617/x
  3. Step 3: Cross multiply
    3,952x = 5,617 × 5,617
  4. Step 4: Simplify right side
    3,952x = 31,550,689
  5. Step 5: Solve for x
    x = 31,550,689/3,952
  6. Step 6: Final answer
    x = 7,983.47

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.