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Finding the Fourth Proportional to 3,753.01, 5,179.47 and 2,181

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Solution

The fourth proportional to 3,753.01, 5,179.47 and 2,181 is: 3,009.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,753.01 : 5,179.47 = 2,181 : x
  2. Step 2: Convert to fraction form
    3,753.01/5,179.47 = 2,181/x
  3. Step 3: Cross multiply
    3,753.01x = 5,179.47 × 2,181
  4. Step 4: Simplify right side
    3,753.01x = 11,296,424.07
  5. Step 5: Solve for x
    x = 11,296,424.07/3,753.01
  6. Step 6: Final answer
    x = 3,009.97

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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.