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Finding the Fourth Proportional to 5,171.73, 7,758.81 and 1,474.01

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Solution

The fourth proportional to 5,171.73, 7,758.81 and 1,474.01 is: 2,211.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,171.73 : 7,758.81 = 1,474.01 : x
  2. Step 2: Convert to fraction form
    5,171.73/7,758.81 = 1,474.01/x
  3. Step 3: Cross multiply
    5,171.73x = 7,758.81 × 1,474.01
  4. Step 4: Simplify right side
    5,171.73x = 11,436,563.53
  5. Step 5: Solve for x
    x = 11,436,563.53/5,171.73
  6. Step 6: Final answer
    x = 2,211.36

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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.