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Finding the Fourth Proportional to 8,763.14, 12,092.06 and 4,986.78

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Solution

The fourth proportional to 8,763.14, 12,092.06 and 4,986.78 is: 6,881.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,763.14 : 12,092.06 = 4,986.78 : x
  2. Step 2: Convert to fraction form
    8,763.14/12,092.06 = 4,986.78/x
  3. Step 3: Cross multiply
    8,763.14x = 12,092.06 × 4,986.78
  4. Step 4: Simplify right side
    8,763.14x = 60,300,442.97
  5. Step 5: Solve for x
    x = 60,300,442.97/8,763.14
  6. Step 6: Final answer
    x = 6,881.15

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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.