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Finding the Third Proportional to 831 and 2,253

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Solution

The third proportional to 831 and 2,253 is: 6,108.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    831 : 2,253 = 2,253 : x
  2. Step 2: Convert to fraction form
    831/2,253 = 2,253/x
  3. Step 3: Cross multiply
    831x = 2,253 × 2,253
  4. Step 4: Simplify right side
    831x = 5,076,009
  5. Step 5: Solve for x
    x = 5,076,009/831
  6. Step 6: Final answer
    x = 6,108.31

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Why These Related Problems?

These problems maintain the same ratio (2.71) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.