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Finding the Third Proportional to 52,760 and 81,956

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Solution

The third proportional to 52,760 and 81,956 is: 127,308.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,760 : 81,956 = 81,956 : x
  2. Step 2: Convert to fraction form
    52,760/81,956 = 81,956/x
  3. Step 3: Cross multiply
    52,760x = 81,956 × 81,956
  4. Step 4: Simplify right side
    52,760x = 6,716,785,936
  5. Step 5: Solve for x
    x = 6,716,785,936/52,760
  6. Step 6: Final answer
    x = 127,308.30

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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.