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Finding the Fourth Proportional to 5,568.42, 7,679.12 and 3,329.94

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Solution

The fourth proportional to 5,568.42, 7,679.12 and 3,329.94 is: 4,592.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,568.42 : 7,679.12 = 3,329.94 : x
  2. Step 2: Convert to fraction form
    5,568.42/7,679.12 = 3,329.94/x
  3. Step 3: Cross multiply
    5,568.42x = 7,679.12 × 3,329.94
  4. Step 4: Simplify right side
    5,568.42x = 25,571,008.85
  5. Step 5: Solve for x
    x = 25,571,008.85/5,568.42
  6. Step 6: Final answer
    x = 4,592.15

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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.