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Finding the Fourth Proportional to 4,872.72, 6,724.34 and 2,634.58

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Solution

The fourth proportional to 4,872.72, 6,724.34 and 2,634.58 is: 3,635.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,872.72 : 6,724.34 = 2,634.58 : x
  2. Step 2: Convert to fraction form
    4,872.72/6,724.34 = 2,634.58/x
  3. Step 3: Cross multiply
    4,872.72x = 6,724.34 × 2,634.58
  4. Step 4: Simplify right side
    4,872.72x = 17,715,811.68
  5. Step 5: Solve for x
    x = 17,715,811.68/4,872.72
  6. Step 6: Final answer
    x = 3,635.71

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1.5x scale

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.