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Finding the Fourth Proportional to 8,193.84, 12,286.92 and 2,718

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Solution

The fourth proportional to 8,193.84, 12,286.92 and 2,718 is: 4,075.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,193.84 : 12,286.92 = 2,718 : x
  2. Step 2: Convert to fraction form
    8,193.84/12,286.92 = 2,718/x
  3. Step 3: Cross multiply
    8,193.84x = 12,286.92 × 2,718
  4. Step 4: Simplify right side
    8,193.84x = 33,395,848.56
  5. Step 5: Solve for x
    x = 33,395,848.56/8,193.84
  6. Step 6: Final answer
    x = 4,075.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.