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Finding the Third Proportional to 18,765 and 38,502

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Solution

The third proportional to 18,765 and 38,502 is: 78,998.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,765 : 38,502 = 38,502 : x
  2. Step 2: Convert to fraction form
    18,765/38,502 = 38,502/x
  3. Step 3: Cross multiply
    18,765x = 38,502 × 38,502
  4. Step 4: Simplify right side
    18,765x = 1,482,404,004
  5. Step 5: Solve for x
    x = 1,482,404,004/18,765
  6. Step 6: Final answer
    x = 78,998.35

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.