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Finding the Fourth Proportional to 8,630.92, 11,906.22 and 5,483.80

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Solution

The fourth proportional to 8,630.92, 11,906.22 and 5,483.80 is: 7,564.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,630.92 : 11,906.22 = 5,483.80 : x
  2. Step 2: Convert to fraction form
    8,630.92/11,906.22 = 5,483.80/x
  3. Step 3: Cross multiply
    8,630.92x = 11,906.22 × 5,483.80
  4. Step 4: Simplify right side
    8,630.92x = 65,291,329.24
  5. Step 5: Solve for x
    x = 65,291,329.24/8,630.92
  6. Step 6: Final answer
    x = 7,564.82

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