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Finding the Third Proportional to 126,931 and 275,712

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Solution

The third proportional to 126,931 and 275,712 is: 598,885.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,931 : 275,712 = 275,712 : x
  2. Step 2: Convert to fraction form
    126,931/275,712 = 275,712/x
  3. Step 3: Cross multiply
    126,931x = 275,712 × 275,712
  4. Step 4: Simplify right side
    126,931x = 76,017,106,944
  5. Step 5: Solve for x
    x = 76,017,106,944/126,931
  6. Step 6: Final answer
    x = 598,885.28

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.