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Finding the Fourth Proportional to 3,173.82, 4,760.49 and 982.56

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Solution

The fourth proportional to 3,173.82, 4,760.49 and 982.56 is: 1,473.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,173.82 : 4,760.49 = 982.56 : x
  2. Step 2: Convert to fraction form
    3,173.82/4,760.49 = 982.56/x
  3. Step 3: Cross multiply
    3,173.82x = 4,760.49 × 982.56
  4. Step 4: Simplify right side
    3,173.82x = 4,677,467.05
  5. Step 5: Solve for x
    x = 4,677,467.05/3,173.82
  6. Step 6: Final answer
    x = 1,473.77

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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.