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Finding the Fourth Proportional to 5,679.59, 8,507.07 and 2,751.75

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Solution

The fourth proportional to 5,679.59, 8,507.07 and 2,751.75 is: 4,121.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,679.59 : 8,507.07 = 2,751.75 : x
  2. Step 2: Convert to fraction form
    5,679.59/8,507.07 = 2,751.75/x
  3. Step 3: Cross multiply
    5,679.59x = 8,507.07 × 2,751.75
  4. Step 4: Simplify right side
    5,679.59x = 23,409,329.87
  5. Step 5: Solve for x
    x = 23,409,329.87/5,679.59
  6. Step 6: Final answer
    x = 4,121.66

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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.