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Finding the Fourth Proportional to 7,751.73, 11,620.51 and 3,367.61

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Solution

The fourth proportional to 7,751.73, 11,620.51 and 3,367.61 is: 5,048.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,751.73 : 11,620.51 = 3,367.61 : x
  2. Step 2: Convert to fraction form
    7,751.73/11,620.51 = 3,367.61/x
  3. Step 3: Cross multiply
    7,751.73x = 11,620.51 × 3,367.61
  4. Step 4: Simplify right side
    7,751.73x = 39,133,345.68
  5. Step 5: Solve for x
    x = 39,133,345.68/7,751.73
  6. Step 6: Final answer
    x = 5,048.34

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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.