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Finding the Third Proportional to 18,390.38 and 27,793.13

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Solution

The third proportional to 18,390.38 and 27,793.13 is: 42,003.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,390.38 : 27,793.13 = 27,793.13 : x
  2. Step 2: Convert to fraction form
    18,390.38/27,793.13 = 27,793.13/x
  3. Step 3: Cross multiply
    18,390.38x = 27,793.13 × 27,793.13
  4. Step 4: Simplify right side
    18,390.38x = 772,457,797.27
  5. Step 5: Solve for x
    x = 772,457,797.27/18,390.38
  6. Step 6: Final answer
    x = 42,003.37

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.