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Finding the Third Proportional to 20,172 and 47,110

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Solution

The third proportional to 20,172 and 47,110 is: 110,021.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,172 : 47,110 = 47,110 : x
  2. Step 2: Convert to fraction form
    20,172/47,110 = 47,110/x
  3. Step 3: Cross multiply
    20,172x = 47,110 × 47,110
  4. Step 4: Simplify right side
    20,172x = 2,219,352,100
  5. Step 5: Solve for x
    x = 2,219,352,100/20,172
  6. Step 6: Final answer
    x = 110,021.42

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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.