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Finding the Third Proportional to 51,939 and 69,795

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Solution

The third proportional to 51,939 and 69,795 is: 93,789.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,939 : 69,795 = 69,795 : x
  2. Step 2: Convert to fraction form
    51,939/69,795 = 69,795/x
  3. Step 3: Cross multiply
    51,939x = 69,795 × 69,795
  4. Step 4: Simplify right side
    51,939x = 4,871,342,025
  5. Step 5: Solve for x
    x = 4,871,342,025/51,939
  6. Step 6: Final answer
    x = 93,789.68

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.