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Finding the Fourth Proportional to 2,174.62, 3,000.98 and 1,179.92

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Solution

The fourth proportional to 2,174.62, 3,000.98 and 1,179.92 is: 1,628.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,174.62 : 3,000.98 = 1,179.92 : x
  2. Step 2: Convert to fraction form
    2,174.62/3,000.98 = 1,179.92/x
  3. Step 3: Cross multiply
    2,174.62x = 3,000.98 × 1,179.92
  4. Step 4: Simplify right side
    2,174.62x = 3,540,916.32
  5. Step 5: Solve for x
    x = 3,540,916.32/2,174.62
  6. Step 6: Final answer
    x = 1,628.29

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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.