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Finding the Fourth Proportional to 6,651.70, 9,983.72 and 3,367.11

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Solution

The fourth proportional to 6,651.70, 9,983.72 and 3,367.11 is: 5,053.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,651.70 : 9,983.72 = 3,367.11 : x
  2. Step 2: Convert to fraction form
    6,651.70/9,983.72 = 3,367.11/x
  3. Step 3: Cross multiply
    6,651.70x = 9,983.72 × 3,367.11
  4. Step 4: Simplify right side
    6,651.70x = 33,616,283.45
  5. Step 5: Solve for x
    x = 33,616,283.45/6,651.70
  6. Step 6: Final answer
    x = 5,053.79

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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.