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Finding the Third Proportional to 5,086 and 6,521

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Solution

The third proportional to 5,086 and 6,521 is: 8,360.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,086 : 6,521 = 6,521 : x
  2. Step 2: Convert to fraction form
    5,086/6,521 = 6,521/x
  3. Step 3: Cross multiply
    5,086x = 6,521 × 6,521
  4. Step 4: Simplify right side
    5,086x = 42,523,441
  5. Step 5: Solve for x
    x = 42,523,441/5,086
  6. Step 6: Final answer
    x = 8,360.88

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Why These Related Problems?

These problems maintain the same ratio (1.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.