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Finding the Third Proportional to 4,987 and 11,756

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Solution

The third proportional to 4,987 and 11,756 is: 27,712.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,987 : 11,756 = 11,756 : x
  2. Step 2: Convert to fraction form
    4,987/11,756 = 11,756/x
  3. Step 3: Cross multiply
    4,987x = 11,756 × 11,756
  4. Step 4: Simplify right side
    4,987x = 138,203,536
  5. Step 5: Solve for x
    x = 138,203,536/4,987
  6. Step 6: Final answer
    x = 27,712.76

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.