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Finding the Third Proportional to 2,940 and 6,326

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Solution

The third proportional to 2,940 and 6,326 is: 13,611.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,940 : 6,326 = 6,326 : x
  2. Step 2: Convert to fraction form
    2,940/6,326 = 6,326/x
  3. Step 3: Cross multiply
    2,940x = 6,326 × 6,326
  4. Step 4: Simplify right side
    2,940x = 40,018,276
  5. Step 5: Solve for x
    x = 40,018,276/2,940
  6. Step 6: Final answer
    x = 13,611.66

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.