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Finding the Third Proportional to 47,212 and 100,741

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Solution

The third proportional to 47,212 and 100,741 is: 214,961.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,212 : 100,741 = 100,741 : x
  2. Step 2: Convert to fraction form
    47,212/100,741 = 100,741/x
  3. Step 3: Cross multiply
    47,212x = 100,741 × 100,741
  4. Step 4: Simplify right side
    47,212x = 10,148,749,081
  5. Step 5: Solve for x
    x = 10,148,749,081/47,212
  6. Step 6: Final answer
    x = 214,961.22

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.