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Finding the Third Proportional to 20,270 and 43,519

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Solution

The third proportional to 20,270 and 43,519 is: 93,433.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,270 : 43,519 = 43,519 : x
  2. Step 2: Convert to fraction form
    20,270/43,519 = 43,519/x
  3. Step 3: Cross multiply
    20,270x = 43,519 × 43,519
  4. Step 4: Simplify right side
    20,270x = 1,893,903,361
  5. Step 5: Solve for x
    x = 1,893,903,361/20,270
  6. Step 6: Final answer
    x = 93,433.81

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.