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Finding the Third Proportional to 51,340 and 76,798

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Solution

The third proportional to 51,340 and 76,798 is: 114,879.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,340 : 76,798 = 76,798 : x
  2. Step 2: Convert to fraction form
    51,340/76,798 = 76,798/x
  3. Step 3: Cross multiply
    51,340x = 76,798 × 76,798
  4. Step 4: Simplify right side
    51,340x = 5,897,932,804
  5. Step 5: Solve for x
    x = 5,897,932,804/51,340
  6. Step 6: Final answer
    x = 114,879.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.