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Finding the Third Proportional to 18,650 and 38,788

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Solution

The third proportional to 18,650 and 38,788 is: 80,670.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,650 : 38,788 = 38,788 : x
  2. Step 2: Convert to fraction form
    18,650/38,788 = 38,788/x
  3. Step 3: Cross multiply
    18,650x = 38,788 × 38,788
  4. Step 4: Simplify right side
    18,650x = 1,504,508,944
  5. Step 5: Solve for x
    x = 1,504,508,944/18,650
  6. Step 6: Final answer
    x = 80,670.72

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.