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Finding the Third Proportional to 52,551 and 81,590

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Solution

The third proportional to 52,551 and 81,590 is: 126,675.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,551 : 81,590 = 81,590 : x
  2. Step 2: Convert to fraction form
    52,551/81,590 = 81,590/x
  3. Step 3: Cross multiply
    52,551x = 81,590 × 81,590
  4. Step 4: Simplify right side
    52,551x = 6,656,928,100
  5. Step 5: Solve for x
    x = 6,656,928,100/52,551
  6. Step 6: Final answer
    x = 126,675.57

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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.