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Finding the Third Proportional to 5,311 and 6,496

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Solution

The third proportional to 5,311 and 6,496 is: 7,945.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,311 : 6,496 = 6,496 : x
  2. Step 2: Convert to fraction form
    5,311/6,496 = 6,496/x
  3. Step 3: Cross multiply
    5,311x = 6,496 × 6,496
  4. Step 4: Simplify right side
    5,311x = 42,198,016
  5. Step 5: Solve for x
    x = 42,198,016/5,311
  6. Step 6: Final answer
    x = 7,945.40

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Why These Related Problems?

These problems maintain the same ratio (1.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.