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Finding the Fourth Proportional to 4,643.88, 6,965.48 and 2,179.26

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Solution

The fourth proportional to 4,643.88, 6,965.48 and 2,179.26 is: 3,268.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,643.88 : 6,965.48 = 2,179.26 : x
  2. Step 2: Convert to fraction form
    4,643.88/6,965.48 = 2,179.26/x
  3. Step 3: Cross multiply
    4,643.88x = 6,965.48 × 2,179.26
  4. Step 4: Simplify right side
    4,643.88x = 15,179,591.94
  5. Step 5: Solve for x
    x = 15,179,591.94/4,643.88
  6. Step 6: Final answer
    x = 3,268.73

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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.