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Finding the Fourth Proportional to 4,959.94, 7,441.78 and 2,619.85

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Solution

The fourth proportional to 4,959.94, 7,441.78 and 2,619.85 is: 3,930.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,959.94 : 7,441.78 = 2,619.85 : x
  2. Step 2: Convert to fraction form
    4,959.94/7,441.78 = 2,619.85/x
  3. Step 3: Cross multiply
    4,959.94x = 7,441.78 × 2,619.85
  4. Step 4: Simplify right side
    4,959.94x = 19,496,332.00
  5. Step 5: Solve for x
    x = 19,496,332.00/4,959.94
  6. Step 6: Final answer
    x = 3,930.76

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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.