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Finding the Third Proportional to 20,668 and 30,082

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Solution

The third proportional to 20,668 and 30,082 is: 43,783.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,668 : 30,082 = 30,082 : x
  2. Step 2: Convert to fraction form
    20,668/30,082 = 30,082/x
  3. Step 3: Cross multiply
    20,668x = 30,082 × 30,082
  4. Step 4: Simplify right side
    20,668x = 904,926,724
  5. Step 5: Solve for x
    x = 904,926,724/20,668
  6. Step 6: Final answer
    x = 43,783.95

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.