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Finding the Fourth Proportional to 3,366.30, 5,049.05 and 901.31

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Solution

The fourth proportional to 3,366.30, 5,049.05 and 901.31 is: 1,351.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,366.30 : 5,049.05 = 901.31 : x
  2. Step 2: Convert to fraction form
    3,366.30/5,049.05 = 901.31/x
  3. Step 3: Cross multiply
    3,366.30x = 5,049.05 × 901.31
  4. Step 4: Simplify right side
    3,366.30x = 4,550,729.50
  5. Step 5: Solve for x
    x = 4,550,729.50/3,366.30
  6. Step 6: Final answer
    x = 1,351.85

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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.