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Finding the Third Proportional to 13,576 and 20,238

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Solution

The third proportional to 13,576 and 20,238 is: 30,169.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,576 : 20,238 = 20,238 : x
  2. Step 2: Convert to fraction form
    13,576/20,238 = 20,238/x
  3. Step 3: Cross multiply
    13,576x = 20,238 × 20,238
  4. Step 4: Simplify right side
    13,576x = 409,576,644
  5. Step 5: Solve for x
    x = 409,576,644/13,576
  6. Step 6: Final answer
    x = 30,169.17

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.