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Finding the Fourth Proportional to 8,863.92, 12,237.12 and 5,328

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Solution

The fourth proportional to 8,863.92, 12,237.12 and 5,328 is: 7,355.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,863.92 : 12,237.12 = 5,328 : x
  2. Step 2: Convert to fraction form
    8,863.92/12,237.12 = 5,328/x
  3. Step 3: Cross multiply
    8,863.92x = 12,237.12 × 5,328
  4. Step 4: Simplify right side
    8,863.92x = 65,199,375.36
  5. Step 5: Solve for x
    x = 65,199,375.36/8,863.92
  6. Step 6: Final answer
    x = 7,355.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.