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Finding the Fourth Proportional to 11,821.45, 16,323.11 and 8,052.52

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Solution

The fourth proportional to 11,821.45, 16,323.11 and 8,052.52 is: 11,118.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,821.45 : 16,323.11 = 8,052.52 : x
  2. Step 2: Convert to fraction form
    11,821.45/16,323.11 = 8,052.52/x
  3. Step 3: Cross multiply
    11,821.45x = 16,323.11 × 8,052.52
  4. Step 4: Simplify right side
    11,821.45x = 131,442,169.74
  5. Step 5: Solve for x
    x = 131,442,169.74/11,821.45
  6. Step 6: Final answer
    x = 11,118.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.