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Finding the Third Proportional to 20,440 and 47,766

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Solution

The third proportional to 20,440 and 47,766 is: 111,623.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,440 : 47,766 = 47,766 : x
  2. Step 2: Convert to fraction form
    20,440/47,766 = 47,766/x
  3. Step 3: Cross multiply
    20,440x = 47,766 × 47,766
  4. Step 4: Simplify right side
    20,440x = 2,281,590,756
  5. Step 5: Solve for x
    x = 2,281,590,756/20,440
  6. Step 6: Final answer
    x = 111,623.81

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Why These Related Problems?

These problems maintain the same ratio (2.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.