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Finding the Third Proportional to 3,116 and 4,275

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Solution

The third proportional to 3,116 and 4,275 is: 5,865.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,116 : 4,275 = 4,275 : x
  2. Step 2: Convert to fraction form
    3,116/4,275 = 4,275/x
  3. Step 3: Cross multiply
    3,116x = 4,275 × 4,275
  4. Step 4: Simplify right side
    3,116x = 18,275,625
  5. Step 5: Solve for x
    x = 18,275,625/3,116
  6. Step 6: Final answer
    x = 5,865.09

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.