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Finding the Third Proportional to 52,922 and 81,995

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Solution

The third proportional to 52,922 and 81,995 is: 127,039.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,922 : 81,995 = 81,995 : x
  2. Step 2: Convert to fraction form
    52,922/81,995 = 81,995/x
  3. Step 3: Cross multiply
    52,922x = 81,995 × 81,995
  4. Step 4: Simplify right side
    52,922x = 6,723,180,025
  5. Step 5: Solve for x
    x = 6,723,180,025/52,922
  6. Step 6: Final answer
    x = 127,039.42

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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.