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Finding the Third Proportional to 57,906 and 126,216

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Solution

The third proportional to 57,906 and 126,216 is: 275,109.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,906 : 126,216 = 126,216 : x
  2. Step 2: Convert to fraction form
    57,906/126,216 = 126,216/x
  3. Step 3: Cross multiply
    57,906x = 126,216 × 126,216
  4. Step 4: Simplify right side
    57,906x = 15,930,478,656
  5. Step 5: Solve for x
    x = 15,930,478,656/57,906
  6. Step 6: Final answer
    x = 275,109.29

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.