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Finding the Fourth Proportional to 3,774.22, 5,660.97 and 1,177

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Solution

The fourth proportional to 3,774.22, 5,660.97 and 1,177 is: 1,765.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,774.22 : 5,660.97 = 1,177 : x
  2. Step 2: Convert to fraction form
    3,774.22/5,660.97 = 1,177/x
  3. Step 3: Cross multiply
    3,774.22x = 5,660.97 × 1,177
  4. Step 4: Simplify right side
    3,774.22x = 6,662,961.69
  5. Step 5: Solve for x
    x = 6,662,961.69/3,774.22
  6. Step 6: Final answer
    x = 1,765.39

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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.