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Finding the Third Proportional to 6,449 and 8,702

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Solution

The third proportional to 6,449 and 8,702 is: 11,742.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,449 : 8,702 = 8,702 : x
  2. Step 2: Convert to fraction form
    6,449/8,702 = 8,702/x
  3. Step 3: Cross multiply
    6,449x = 8,702 × 8,702
  4. Step 4: Simplify right side
    6,449x = 75,724,804
  5. Step 5: Solve for x
    x = 75,724,804/6,449
  6. Step 6: Final answer
    x = 11,742.10

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.