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Finding the Third Proportional to 2,456 and 5,317

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Solution

The third proportional to 2,456 and 5,317 is: 11,510.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,456 : 5,317 = 5,317 : x
  2. Step 2: Convert to fraction form
    2,456/5,317 = 5,317/x
  3. Step 3: Cross multiply
    2,456x = 5,317 × 5,317
  4. Step 4: Simplify right side
    2,456x = 28,270,489
  5. Step 5: Solve for x
    x = 28,270,489/2,456
  6. Step 6: Final answer
    x = 11,510.79

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.