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Finding the Third Proportional to 12,611 and 29,865

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Solution

The third proportional to 12,611 and 29,865 is: 70,725.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,611 : 29,865 = 29,865 : x
  2. Step 2: Convert to fraction form
    12,611/29,865 = 29,865/x
  3. Step 3: Cross multiply
    12,611x = 29,865 × 29,865
  4. Step 4: Simplify right side
    12,611x = 891,918,225
  5. Step 5: Solve for x
    x = 891,918,225/12,611
  6. Step 6: Final answer
    x = 70,725.42

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Why These Related Problems?

These problems maintain the same ratio (2.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.