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Finding the Third Proportional to 1,995 and 3,137

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Solution

The third proportional to 1,995 and 3,137 is: 4,932.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,995 : 3,137 = 3,137 : x
  2. Step 2: Convert to fraction form
    1,995/3,137 = 3,137/x
  3. Step 3: Cross multiply
    1,995x = 3,137 × 3,137
  4. Step 4: Simplify right side
    1,995x = 9,840,769
  5. Step 5: Solve for x
    x = 9,840,769/1,995
  6. Step 6: Final answer
    x = 4,932.72

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.