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Finding the Fourth Proportional to 5,718.53, 8,581.08 and 3,086.03

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Solution

The fourth proportional to 5,718.53, 8,581.08 and 3,086.03 is: 4,630.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,718.53 : 8,581.08 = 3,086.03 : x
  2. Step 2: Convert to fraction form
    5,718.53/8,581.08 = 3,086.03/x
  3. Step 3: Cross multiply
    5,718.53x = 8,581.08 × 3,086.03
  4. Step 4: Simplify right side
    5,718.53x = 26,481,470.31
  5. Step 5: Solve for x
    x = 26,481,470.31/5,718.53
  6. Step 6: Final answer
    x = 4,630.82

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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.