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Finding the Fourth Proportional to 27,745.43, 41,620.41 and 9,020.61

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Solution

The fourth proportional to 27,745.43, 41,620.41 and 9,020.61 is: 13,531.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,745.43 : 41,620.41 = 9,020.61 : x
  2. Step 2: Convert to fraction form
    27,745.43/41,620.41 = 9,020.61/x
  3. Step 3: Cross multiply
    27,745.43x = 41,620.41 × 9,020.61
  4. Step 4: Simplify right side
    27,745.43x = 375,441,486.65
  5. Step 5: Solve for x
    x = 375,441,486.65/27,745.43
  6. Step 6: Final answer
    x = 13,531.65

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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.