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Finding the Third Proportional to 13,185 and 20,727

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Solution

The third proportional to 13,185 and 20,727 is: 32,583.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,185 : 20,727 = 20,727 : x
  2. Step 2: Convert to fraction form
    13,185/20,727 = 20,727/x
  3. Step 3: Cross multiply
    13,185x = 20,727 × 20,727
  4. Step 4: Simplify right side
    13,185x = 429,608,529
  5. Step 5: Solve for x
    x = 429,608,529/13,185
  6. Step 6: Final answer
    x = 32,583.13

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.