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Finding the Third Proportional to 9,372.38 and 19,936.13

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Solution

The third proportional to 9,372.38 and 19,936.13 is: 42,406.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,372.38 : 19,936.13 = 19,936.13 : x
  2. Step 2: Convert to fraction form
    9,372.38/19,936.13 = 19,936.13/x
  3. Step 3: Cross multiply
    9,372.38x = 19,936.13 × 19,936.13
  4. Step 4: Simplify right side
    9,372.38x = 397,449,080.02
  5. Step 5: Solve for x
    x = 397,449,080.02/9,372.38
  6. Step 6: Final answer
    x = 42,406.44

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.