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Finding the Fourth Proportional to 5,718.72, 8,579.34 and 3,254.70

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Solution

The fourth proportional to 5,718.72, 8,579.34 and 3,254.70 is: 4,882.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,718.72 : 8,579.34 = 3,254.70 : x
  2. Step 2: Convert to fraction form
    5,718.72/8,579.34 = 3,254.70/x
  3. Step 3: Cross multiply
    5,718.72x = 8,579.34 × 3,254.70
  4. Step 4: Simplify right side
    5,718.72x = 27,923,177.90
  5. Step 5: Solve for x
    x = 27,923,177.90/5,718.72
  6. Step 6: Final answer
    x = 4,882.77

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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.