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Finding the Fourth Proportional to 3,966.84, 5,474.01 and 2,198.34

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Solution

The fourth proportional to 3,966.84, 5,474.01 and 2,198.34 is: 3,033.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,966.84 : 5,474.01 = 2,198.34 : x
  2. Step 2: Convert to fraction form
    3,966.84/5,474.01 = 2,198.34/x
  3. Step 3: Cross multiply
    3,966.84x = 5,474.01 × 2,198.34
  4. Step 4: Simplify right side
    3,966.84x = 12,033,735.14
  5. Step 5: Solve for x
    x = 12,033,735.14/3,966.84
  6. Step 6: Final answer
    x = 3,033.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.