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Finding the Third Proportional to 2,807 and 7,625

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Solution

The third proportional to 2,807 and 7,625 is: 20,712.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,807 : 7,625 = 7,625 : x
  2. Step 2: Convert to fraction form
    2,807/7,625 = 7,625/x
  3. Step 3: Cross multiply
    2,807x = 7,625 × 7,625
  4. Step 4: Simplify right side
    2,807x = 58,140,625
  5. Step 5: Solve for x
    x = 58,140,625/2,807
  6. Step 6: Final answer
    x = 20,712.73

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Why These Related Problems?

These problems maintain the same ratio (2.72) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.