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Finding the Fourth Proportional to 3,751.54, 5,177.13 and 2,072.99

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Solution

The fourth proportional to 3,751.54, 5,177.13 and 2,072.99 is: 2,860.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,751.54 : 5,177.13 = 2,072.99 : x
  2. Step 2: Convert to fraction form
    3,751.54/5,177.13 = 2,072.99/x
  3. Step 3: Cross multiply
    3,751.54x = 5,177.13 × 2,072.99
  4. Step 4: Simplify right side
    3,751.54x = 10,732,138.72
  5. Step 5: Solve for x
    x = 10,732,138.72/3,751.54
  6. Step 6: Final answer
    x = 2,860.73

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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.