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Finding the Third Proportional to 5,760 and 11,232

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Solution

The third proportional to 5,760 and 11,232 is: 21,902.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,760 : 11,232 = 11,232 : x
  2. Step 2: Convert to fraction form
    5,760/11,232 = 11,232/x
  3. Step 3: Cross multiply
    5,760x = 11,232 × 11,232
  4. Step 4: Simplify right side
    5,760x = 126,157,824
  5. Step 5: Solve for x
    x = 126,157,824/5,760
  6. Step 6: Final answer
    x = 21,902.40

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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.