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Finding the Third Proportional to 3,626 and 7,810

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Solution

The third proportional to 3,626 and 7,810 is: 16,821.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,626 : 7,810 = 7,810 : x
  2. Step 2: Convert to fraction form
    3,626/7,810 = 7,810/x
  3. Step 3: Cross multiply
    3,626x = 7,810 × 7,810
  4. Step 4: Simplify right side
    3,626x = 60,996,100
  5. Step 5: Solve for x
    x = 60,996,100/3,626
  6. Step 6: Final answer
    x = 16,821.87

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.