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Finding the Third Proportional to 40,932 and 85,992

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Solution

The third proportional to 40,932 and 85,992 is: 180,656.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,932 : 85,992 = 85,992 : x
  2. Step 2: Convert to fraction form
    40,932/85,992 = 85,992/x
  3. Step 3: Cross multiply
    40,932x = 85,992 × 85,992
  4. Step 4: Simplify right side
    40,932x = 7,394,624,064
  5. Step 5: Solve for x
    x = 7,394,624,064/40,932
  6. Step 6: Final answer
    x = 180,656.31

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.