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Finding the Third Proportional to 57,672 and 126,276

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Solution

The third proportional to 57,672 and 126,276 is: 276,488.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,672 : 126,276 = 126,276 : x
  2. Step 2: Convert to fraction form
    57,672/126,276 = 126,276/x
  3. Step 3: Cross multiply
    57,672x = 126,276 × 126,276
  4. Step 4: Simplify right side
    57,672x = 15,945,628,176
  5. Step 5: Solve for x
    x = 15,945,628,176/57,672
  6. Step 6: Final answer
    x = 276,488.21

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.