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Finding the Third Proportional to 18,461 and 38,006

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Solution

The third proportional to 18,461 and 38,006 is: 78,243.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,461 : 38,006 = 38,006 : x
  2. Step 2: Convert to fraction form
    18,461/38,006 = 38,006/x
  3. Step 3: Cross multiply
    18,461x = 38,006 × 38,006
  4. Step 4: Simplify right side
    18,461x = 1,444,456,036
  5. Step 5: Solve for x
    x = 1,444,456,036/18,461
  6. Step 6: Final answer
    x = 78,243.65

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.