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Finding the Fourth Proportional to 3,893.54, 5,373.84 and 2,713.93

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Solution

The fourth proportional to 3,893.54, 5,373.84 and 2,713.93 is: 3,745.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,893.54 : 5,373.84 = 2,713.93 : x
  2. Step 2: Convert to fraction form
    3,893.54/5,373.84 = 2,713.93/x
  3. Step 3: Cross multiply
    3,893.54x = 5,373.84 × 2,713.93
  4. Step 4: Simplify right side
    3,893.54x = 14,584,222.33
  5. Step 5: Solve for x
    x = 14,584,222.33/3,893.54
  6. Step 6: Final answer
    x = 3,745.75

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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.