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Finding the Fourth Proportional to 5,765.56, 7,955.10 and 3,247.84

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Solution

The fourth proportional to 5,765.56, 7,955.10 and 3,247.84 is: 4,481.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,765.56 : 7,955.10 = 3,247.84 : x
  2. Step 2: Convert to fraction form
    5,765.56/7,955.10 = 3,247.84/x
  3. Step 3: Cross multiply
    5,765.56x = 7,955.10 × 3,247.84
  4. Step 4: Simplify right side
    5,765.56x = 25,836,891.98
  5. Step 5: Solve for x
    x = 25,836,891.98/5,765.56
  6. Step 6: Final answer
    x = 4,481.25

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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.