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Finding the Third Proportional to 39,512 and 52,212

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Solution

The third proportional to 39,512 and 52,212 is: 68,994.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,512 : 52,212 = 52,212 : x
  2. Step 2: Convert to fraction form
    39,512/52,212 = 52,212/x
  3. Step 3: Cross multiply
    39,512x = 52,212 × 52,212
  4. Step 4: Simplify right side
    39,512x = 2,726,092,944
  5. Step 5: Solve for x
    x = 2,726,092,944/39,512
  6. Step 6: Final answer
    x = 68,994.05

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Why These Related Problems?

These problems maintain the same ratio (1.32) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.