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Finding the Third Proportional to 43,932 and 68,085

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Solution

The third proportional to 43,932 and 68,085 is: 105,516.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,932 : 68,085 = 68,085 : x
  2. Step 2: Convert to fraction form
    43,932/68,085 = 68,085/x
  3. Step 3: Cross multiply
    43,932x = 68,085 × 68,085
  4. Step 4: Simplify right side
    43,932x = 4,635,567,225
  5. Step 5: Solve for x
    x = 4,635,567,225/43,932
  6. Step 6: Final answer
    x = 105,516.87

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.