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Finding the Third Proportional to 18,387 and 25,996.50

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Solution

The third proportional to 18,387 and 25,996.50 is: 36,755.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,387 : 25,996.50 = 25,996.50 : x
  2. Step 2: Convert to fraction form
    18,387/25,996.50 = 25,996.50/x
  3. Step 3: Cross multiply
    18,387x = 25,996.50 × 25,996.50
  4. Step 4: Simplify right side
    18,387x = 675,818,012.25
  5. Step 5: Solve for x
    x = 675,818,012.25/18,387
  6. Step 6: Final answer
    x = 36,755.21

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.