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Finding the Fourth Proportional to 3,661.62, 5,493.27 and 1,196.63

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Solution

The fourth proportional to 3,661.62, 5,493.27 and 1,196.63 is: 1,795.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,661.62 : 5,493.27 = 1,196.63 : x
  2. Step 2: Convert to fraction form
    3,661.62/5,493.27 = 1,196.63/x
  3. Step 3: Cross multiply
    3,661.62x = 5,493.27 × 1,196.63
  4. Step 4: Simplify right side
    3,661.62x = 6,573,384.21
  5. Step 5: Solve for x
    x = 6,573,384.21/3,661.62
  6. Step 6: Final answer
    x = 1,795.21

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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.