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Finding the Fourth Proportional to 8,855.54, 13,284.91 and 3,661.82

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Solution

The fourth proportional to 8,855.54, 13,284.91 and 3,661.82 is: 5,493.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,855.54 : 13,284.91 = 3,661.82 : x
  2. Step 2: Convert to fraction form
    8,855.54/13,284.91 = 3,661.82/x
  3. Step 3: Cross multiply
    8,855.54x = 13,284.91 × 3,661.82
  4. Step 4: Simplify right side
    8,855.54x = 48,646,949.14
  5. Step 5: Solve for x
    x = 48,646,949.14/8,855.54
  6. Step 6: Final answer
    x = 5,493.39

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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.