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Finding the Third Proportional to 2,456 and 5,281

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Solution

The third proportional to 2,456 and 5,281 is: 11,355.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,456 : 5,281 = 5,281 : x
  2. Step 2: Convert to fraction form
    2,456/5,281 = 5,281/x
  3. Step 3: Cross multiply
    2,456x = 5,281 × 5,281
  4. Step 4: Simplify right side
    2,456x = 27,888,961
  5. Step 5: Solve for x
    x = 27,888,961/2,456
  6. Step 6: Final answer
    x = 11,355.44

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.