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Finding the Fourth Proportional to 3,666, 5,497.56 and 1,355.92

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Solution

The fourth proportional to 3,666, 5,497.56 and 1,355.92 is: 2,033.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,666 : 5,497.56 = 1,355.92 : x
  2. Step 2: Convert to fraction form
    3,666/5,497.56 = 1,355.92/x
  3. Step 3: Cross multiply
    3,666x = 5,497.56 × 1,355.92
  4. Step 4: Simplify right side
    3,666x = 7,454,251.56
  5. Step 5: Solve for x
    x = 7,454,251.56/3,666
  6. Step 6: Final answer
    x = 2,033.35

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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.