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Finding the Third Proportional to 2,192 and 3,964

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Solution

The third proportional to 2,192 and 3,964 is: 7,168.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,192 : 3,964 = 3,964 : x
  2. Step 2: Convert to fraction form
    2,192/3,964 = 3,964/x
  3. Step 3: Cross multiply
    2,192x = 3,964 × 3,964
  4. Step 4: Simplify right side
    2,192x = 15,713,296
  5. Step 5: Solve for x
    x = 15,713,296/2,192
  6. Step 6: Final answer
    x = 7,168.47

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Why These Related Problems?

These problems maintain the same ratio (1.81) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.