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Finding the Third Proportional to 39,659 and 52,869

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Solution

The third proportional to 39,659 and 52,869 is: 70,479.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,659 : 52,869 = 52,869 : x
  2. Step 2: Convert to fraction form
    39,659/52,869 = 52,869/x
  3. Step 3: Cross multiply
    39,659x = 52,869 × 52,869
  4. Step 4: Simplify right side
    39,659x = 2,795,131,161
  5. Step 5: Solve for x
    x = 2,795,131,161/39,659
  6. Step 6: Final answer
    x = 70,479.11

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.