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Finding the Fourth Proportional to 8,763.54, 12,092.13 and 4,986.11

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Solution

The fourth proportional to 8,763.54, 12,092.13 and 4,986.11 is: 6,879.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,763.54 : 12,092.13 = 4,986.11 : x
  2. Step 2: Convert to fraction form
    8,763.54/12,092.13 = 4,986.11/x
  3. Step 3: Cross multiply
    8,763.54x = 12,092.13 × 4,986.11
  4. Step 4: Simplify right side
    8,763.54x = 60,292,629.85
  5. Step 5: Solve for x
    x = 60,292,629.85/8,763.54
  6. Step 6: Final answer
    x = 6,879.94

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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.