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Finding the Third Proportional to 2,447 and 2,825

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Solution

The third proportional to 2,447 and 2,825 is: 3,261.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,447 : 2,825 = 2,825 : x
  2. Step 2: Convert to fraction form
    2,447/2,825 = 2,825/x
  3. Step 3: Cross multiply
    2,447x = 2,825 × 2,825
  4. Step 4: Simplify right side
    2,447x = 7,980,625
  5. Step 5: Solve for x
    x = 7,980,625/2,447
  6. Step 6: Final answer
    x = 3,261.39

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Why These Related Problems?

These problems maintain the same ratio (1.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.