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Finding the Fourth Proportional to 11,762.52, 17,639.28 and 3,863.16

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Solution

The fourth proportional to 11,762.52, 17,639.28 and 3,863.16 is: 5,793.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,762.52 : 17,639.28 = 3,863.16 : x
  2. Step 2: Convert to fraction form
    11,762.52/17,639.28 = 3,863.16/x
  3. Step 3: Cross multiply
    11,762.52x = 17,639.28 × 3,863.16
  4. Step 4: Simplify right side
    11,762.52x = 68,143,360.92
  5. Step 5: Solve for x
    x = 68,143,360.92/11,762.52
  6. Step 6: Final answer
    x = 5,793.26

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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.