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Finding the Third Proportional to 57,926 and 126,220

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Solution

The third proportional to 57,926 and 126,220 is: 275,031.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,926 : 126,220 = 126,220 : x
  2. Step 2: Convert to fraction form
    57,926/126,220 = 126,220/x
  3. Step 3: Cross multiply
    57,926x = 126,220 × 126,220
  4. Step 4: Simplify right side
    57,926x = 15,931,488,400
  5. Step 5: Solve for x
    x = 15,931,488,400/57,926
  6. Step 6: Final answer
    x = 275,031.74

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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.