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Finding the Third Proportional to 54,918 and 80,433

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Solution

The third proportional to 54,918 and 80,433 is: 117,802.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,918 : 80,433 = 80,433 : x
  2. Step 2: Convert to fraction form
    54,918/80,433 = 80,433/x
  3. Step 3: Cross multiply
    54,918x = 80,433 × 80,433
  4. Step 4: Simplify right side
    54,918x = 6,469,467,489
  5. Step 5: Solve for x
    x = 6,469,467,489/54,918
  6. Step 6: Final answer
    x = 117,802.31

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.