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Finding the Third Proportional to 5,756 and 11,240

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Solution

The third proportional to 5,756 and 11,240 is: 21,948.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,756 : 11,240 = 11,240 : x
  2. Step 2: Convert to fraction form
    5,756/11,240 = 11,240/x
  3. Step 3: Cross multiply
    5,756x = 11,240 × 11,240
  4. Step 4: Simplify right side
    5,756x = 126,337,600
  5. Step 5: Solve for x
    x = 126,337,600/5,756
  6. Step 6: Final answer
    x = 21,948.85

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Why These Related Problems?

These problems maintain the same ratio (1.95) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.