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Finding the Third Proportional to 13,635 and 15,936.75

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Solution

The third proportional to 13,635 and 15,936.75 is: 18,627.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,635 : 15,936.75 = 15,936.75 : x
  2. Step 2: Convert to fraction form
    13,635/15,936.75 = 15,936.75/x
  3. Step 3: Cross multiply
    13,635x = 15,936.75 × 15,936.75
  4. Step 4: Simplify right side
    13,635x = 253,980,000.56
  5. Step 5: Solve for x
    x = 253,980,000.56/13,635
  6. Step 6: Final answer
    x = 18,627.06

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Why These Related Problems?

These problems maintain the same ratio (1.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.