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Finding the Third Proportional to 11,296 and 18,168

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Solution

The third proportional to 11,296 and 18,168 is: 29,220.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,296 : 18,168 = 18,168 : x
  2. Step 2: Convert to fraction form
    11,296/18,168 = 18,168/x
  3. Step 3: Cross multiply
    11,296x = 18,168 × 18,168
  4. Step 4: Simplify right side
    11,296x = 330,076,224
  5. Step 5: Solve for x
    x = 330,076,224/11,296
  6. Step 6: Final answer
    x = 29,220.63

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.