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Finding the Third Proportional to 18,181.50 and 38,010

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Solution

The third proportional to 18,181.50 and 38,010 is: 79,463.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,181.50 : 38,010 = 38,010 : x
  2. Step 2: Convert to fraction form
    18,181.50/38,010 = 38,010/x
  3. Step 3: Cross multiply
    18,181.50x = 38,010 × 38,010
  4. Step 4: Simplify right side
    18,181.50x = 1,444,760,100
  5. Step 5: Solve for x
    x = 1,444,760,100/18,181.50
  6. Step 6: Final answer
    x = 79,463.20

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.