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Finding the Third Proportional to 8,256 and 11,200

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Solution

The third proportional to 8,256 and 11,200 is: 15,193.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,256 : 11,200 = 11,200 : x
  2. Step 2: Convert to fraction form
    8,256/11,200 = 11,200/x
  3. Step 3: Cross multiply
    8,256x = 11,200 × 11,200
  4. Step 4: Simplify right side
    8,256x = 125,440,000
  5. Step 5: Solve for x
    x = 125,440,000/8,256
  6. Step 6: Final answer
    x = 15,193.80

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.