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Finding the Fourth Proportional to 4,787.68, 7,179.36 and 3,336.16

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Solution

The fourth proportional to 4,787.68, 7,179.36 and 3,336.16 is: 5,002.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,787.68 : 7,179.36 = 3,336.16 : x
  2. Step 2: Convert to fraction form
    4,787.68/7,179.36 = 3,336.16/x
  3. Step 3: Cross multiply
    4,787.68x = 7,179.36 × 3,336.16
  4. Step 4: Simplify right side
    4,787.68x = 23,951,493.66
  5. Step 5: Solve for x
    x = 23,951,493.66/4,787.68
  6. Step 6: Final answer
    x = 5,002.73

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1.5x scale

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.