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Finding the Fourth Proportional to 8,682.84, 11,982.24 and 4,956.84

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Solution

The fourth proportional to 8,682.84, 11,982.24 and 4,956.84 is: 6,840.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,682.84 : 11,982.24 = 4,956.84 : x
  2. Step 2: Convert to fraction form
    8,682.84/11,982.24 = 4,956.84/x
  3. Step 3: Cross multiply
    8,682.84x = 11,982.24 × 4,956.84
  4. Step 4: Simplify right side
    8,682.84x = 59,394,046.52
  5. Step 5: Solve for x
    x = 59,394,046.52/8,682.84
  6. Step 6: Final answer
    x = 6,840.39

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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.