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Finding the Third Proportional to 21,951 and 48,647

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Solution

The third proportional to 21,951 and 48,647 is: 107,809.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,951 : 48,647 = 48,647 : x
  2. Step 2: Convert to fraction form
    21,951/48,647 = 48,647/x
  3. Step 3: Cross multiply
    21,951x = 48,647 × 48,647
  4. Step 4: Simplify right side
    21,951x = 2,366,530,609
  5. Step 5: Solve for x
    x = 2,366,530,609/21,951
  6. Step 6: Final answer
    x = 107,809.69

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.