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Finding the Third Proportional to 13,143.50 and 18,893

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Solution

The third proportional to 13,143.50 and 18,893 is: 27,157.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,143.50 : 18,893 = 18,893 : x
  2. Step 2: Convert to fraction form
    13,143.50/18,893 = 18,893/x
  3. Step 3: Cross multiply
    13,143.50x = 18,893 × 18,893
  4. Step 4: Simplify right side
    13,143.50x = 356,945,449
  5. Step 5: Solve for x
    x = 356,945,449/13,143.50
  6. Step 6: Final answer
    x = 27,157.56

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.