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Finding the Third Proportional to 2,163 and 3,175

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Solution

The third proportional to 2,163 and 3,175 is: 4,660.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,163 : 3,175 = 3,175 : x
  2. Step 2: Convert to fraction form
    2,163/3,175 = 3,175/x
  3. Step 3: Cross multiply
    2,163x = 3,175 × 3,175
  4. Step 4: Simplify right side
    2,163x = 10,080,625
  5. Step 5: Solve for x
    x = 10,080,625/2,163
  6. Step 6: Final answer
    x = 4,660.48

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.