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Finding the Fourth Proportional to 5,718.24, 8,571 and 2,434.08

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Solution

The fourth proportional to 5,718.24, 8,571 and 2,434.08 is: 3,648.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,718.24 : 8,571 = 2,434.08 : x
  2. Step 2: Convert to fraction form
    5,718.24/8,571 = 2,434.08/x
  3. Step 3: Cross multiply
    5,718.24x = 8,571 × 2,434.08
  4. Step 4: Simplify right side
    5,718.24x = 20,862,499.68
  5. Step 5: Solve for x
    x = 20,862,499.68/5,718.24
  6. Step 6: Final answer
    x = 3,648.41

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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.