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Finding the Third Proportional to 18,009 and 37,845

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Solution

The third proportional to 18,009 and 37,845 is: 79,529.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,009 : 37,845 = 37,845 : x
  2. Step 2: Convert to fraction form
    18,009/37,845 = 37,845/x
  3. Step 3: Cross multiply
    18,009x = 37,845 × 37,845
  4. Step 4: Simplify right side
    18,009x = 1,432,244,025
  5. Step 5: Solve for x
    x = 1,432,244,025/18,009
  6. Step 6: Final answer
    x = 79,529.35

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.