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Finding the Fourth Proportional to 5,250.66, 7,245.80 and 2,860.54

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Solution

The fourth proportional to 5,250.66, 7,245.80 and 2,860.54 is: 3,947.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,250.66 : 7,245.80 = 2,860.54 : x
  2. Step 2: Convert to fraction form
    5,250.66/7,245.80 = 2,860.54/x
  3. Step 3: Cross multiply
    5,250.66x = 7,245.80 × 2,860.54
  4. Step 4: Simplify right side
    5,250.66x = 20,726,900.73
  5. Step 5: Solve for x
    x = 20,726,900.73/5,250.66
  6. Step 6: Final answer
    x = 3,947.48

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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.