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Finding the Fourth Proportional to 3,351.95, 5,027.84 and 886.79

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Solution

The fourth proportional to 3,351.95, 5,027.84 and 886.79 is: 1,330.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,351.95 : 5,027.84 = 886.79 : x
  2. Step 2: Convert to fraction form
    3,351.95/5,027.84 = 886.79/x
  3. Step 3: Cross multiply
    3,351.95x = 5,027.84 × 886.79
  4. Step 4: Simplify right side
    3,351.95x = 4,458,608.66
  5. Step 5: Solve for x
    x = 4,458,608.66/3,351.95
  6. Step 6: Final answer
    x = 1,330.16

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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.