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Finding the Third Proportional to 14,136.75 and 21,207.38

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Solution

The third proportional to 14,136.75 and 21,207.38 is: 31,814.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,136.75 : 21,207.38 = 21,207.38 : x
  2. Step 2: Convert to fraction form
    14,136.75/21,207.38 = 21,207.38/x
  3. Step 3: Cross multiply
    14,136.75x = 21,207.38 × 21,207.38
  4. Step 4: Simplify right side
    14,136.75x = 449,752,754.39
  5. Step 5: Solve for x
    x = 449,752,754.39/14,136.75
  6. Step 6: Final answer
    x = 31,814.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.