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Finding the Third Proportional to 711 and 1,626

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Solution

The third proportional to 711 and 1,626 is: 3,718.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    711 : 1,626 = 1,626 : x
  2. Step 2: Convert to fraction form
    711/1,626 = 1,626/x
  3. Step 3: Cross multiply
    711x = 1,626 × 1,626
  4. Step 4: Simplify right side
    711x = 2,643,876
  5. Step 5: Solve for x
    x = 2,643,876/711
  6. Step 6: Final answer
    x = 3,718.53

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Why These Related Problems?

These problems maintain the same ratio (2.29) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.