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Finding the Fourth Proportional to 1,166.94, 1,747.17 and 984.42

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Solution

The fourth proportional to 1,166.94, 1,747.17 and 984.42 is: 1,473.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,166.94 : 1,747.17 = 984.42 : x
  2. Step 2: Convert to fraction form
    1,166.94/1,747.17 = 984.42/x
  3. Step 3: Cross multiply
    1,166.94x = 1,747.17 × 984.42
  4. Step 4: Simplify right side
    1,166.94x = 1,719,949.09
  5. Step 5: Solve for x
    x = 1,719,949.09/1,166.94
  6. Step 6: Final answer
    x = 1,473.90

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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.