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Finding the Third Proportional to 52,120 and 80,754

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Solution

The third proportional to 52,120 and 80,754 is: 125,119.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,120 : 80,754 = 80,754 : x
  2. Step 2: Convert to fraction form
    52,120/80,754 = 80,754/x
  3. Step 3: Cross multiply
    52,120x = 80,754 × 80,754
  4. Step 4: Simplify right side
    52,120x = 6,521,208,516
  5. Step 5: Solve for x
    x = 6,521,208,516/52,120
  6. Step 6: Final answer
    x = 125,119.12

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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.