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Finding the Third Proportional to 52,580 and 81,549

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Solution

The third proportional to 52,580 and 81,549 is: 126,478.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,580 : 81,549 = 81,549 : x
  2. Step 2: Convert to fraction form
    52,580/81,549 = 81,549/x
  3. Step 3: Cross multiply
    52,580x = 81,549 × 81,549
  4. Step 4: Simplify right side
    52,580x = 6,650,239,401
  5. Step 5: Solve for x
    x = 6,650,239,401/52,580
  6. Step 6: Final answer
    x = 126,478.50

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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.