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Finding the Third Proportional to 2,659 and 3,103

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Solution

The third proportional to 2,659 and 3,103 is: 3,621.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,659 : 3,103 = 3,103 : x
  2. Step 2: Convert to fraction form
    2,659/3,103 = 3,103/x
  3. Step 3: Cross multiply
    2,659x = 3,103 × 3,103
  4. Step 4: Simplify right side
    2,659x = 9,628,609
  5. Step 5: Solve for x
    x = 9,628,609/2,659
  6. Step 6: Final answer
    x = 3,621.14

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Why These Related Problems?

These problems maintain the same ratio (1.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.