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Finding the Third Proportional to 7,926 and 11,937

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Solution

The third proportional to 7,926 and 11,937 is: 17,977.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,926 : 11,937 = 11,937 : x
  2. Step 2: Convert to fraction form
    7,926/11,937 = 11,937/x
  3. Step 3: Cross multiply
    7,926x = 11,937 × 11,937
  4. Step 4: Simplify right side
    7,926x = 142,491,969
  5. Step 5: Solve for x
    x = 142,491,969/7,926
  6. Step 6: Final answer
    x = 17,977.79

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.