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Finding the Third Proportional to 2,646 and 3,964

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Solution

The third proportional to 2,646 and 3,964 is: 5,938.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,646 : 3,964 = 3,964 : x
  2. Step 2: Convert to fraction form
    2,646/3,964 = 3,964/x
  3. Step 3: Cross multiply
    2,646x = 3,964 × 3,964
  4. Step 4: Simplify right side
    2,646x = 15,713,296
  5. Step 5: Solve for x
    x = 15,713,296/2,646
  6. Step 6: Final answer
    x = 5,938.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.