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Finding the Fourth Proportional to 19,212.46, 28,822.17 and 9,351.73

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Solution

The fourth proportional to 19,212.46, 28,822.17 and 9,351.73 is: 14,029.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,212.46 : 28,822.17 = 9,351.73 : x
  2. Step 2: Convert to fraction form
    19,212.46/28,822.17 = 9,351.73/x
  3. Step 3: Cross multiply
    19,212.46x = 28,822.17 × 9,351.73
  4. Step 4: Simplify right side
    19,212.46x = 269,537,151.85
  5. Step 5: Solve for x
    x = 269,537,151.85/19,212.46
  6. Step 6: Final answer
    x = 14,029.29

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