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Finding the Fourth Proportional to 8,787.84, 13,179.42 and 3,592.68

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Solution

The fourth proportional to 8,787.84, 13,179.42 and 3,592.68 is: 5,388.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,787.84 : 13,179.42 = 3,592.68 : x
  2. Step 2: Convert to fraction form
    8,787.84/13,179.42 = 3,592.68/x
  3. Step 3: Cross multiply
    8,787.84x = 13,179.42 × 3,592.68
  4. Step 4: Simplify right side
    8,787.84x = 47,349,438.65
  5. Step 5: Solve for x
    x = 47,349,438.65/8,787.84
  6. Step 6: Final answer
    x = 5,388.06

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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.