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Finding the Fourth Proportional to 3,661.92, 5,493.06 and 1,196.78

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Solution

The fourth proportional to 3,661.92, 5,493.06 and 1,196.78 is: 1,795.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,661.92 : 5,493.06 = 1,196.78 : x
  2. Step 2: Convert to fraction form
    3,661.92/5,493.06 = 1,196.78/x
  3. Step 3: Cross multiply
    3,661.92x = 5,493.06 × 1,196.78
  4. Step 4: Simplify right side
    3,661.92x = 6,573,956.88
  5. Step 5: Solve for x
    x = 6,573,956.88/3,661.92
  6. Step 6: Final answer
    x = 1,795.22

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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.