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Finding the Fourth Proportional to 3,576.66, 4,935.79 and 2,179.41

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Solution

The fourth proportional to 3,576.66, 4,935.79 and 2,179.41 is: 3,007.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,576.66 : 4,935.79 = 2,179.41 : x
  2. Step 2: Convert to fraction form
    3,576.66/4,935.79 = 2,179.41/x
  3. Step 3: Cross multiply
    3,576.66x = 4,935.79 × 2,179.41
  4. Step 4: Simplify right side
    3,576.66x = 10,757,082.04
  5. Step 5: Solve for x
    x = 10,757,082.04/3,576.66
  6. Step 6: Final answer
    x = 3,007.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.