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Finding the Third Proportional to 18,796.50 and 40,872

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Solution

The third proportional to 18,796.50 and 40,872 is: 88,874.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,796.50 : 40,872 = 40,872 : x
  2. Step 2: Convert to fraction form
    18,796.50/40,872 = 40,872/x
  3. Step 3: Cross multiply
    18,796.50x = 40,872 × 40,872
  4. Step 4: Simplify right side
    18,796.50x = 1,670,520,384
  5. Step 5: Solve for x
    x = 1,670,520,384/18,796.50
  6. Step 6: Final answer
    x = 88,874.01

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.