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Finding the Fourth Proportional to 6,902.82, 9,520.74 and 4,382.74

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Solution

The fourth proportional to 6,902.82, 9,520.74 and 4,382.74 is: 6,044.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,902.82 : 9,520.74 = 4,382.74 : x
  2. Step 2: Convert to fraction form
    6,902.82/9,520.74 = 4,382.74/x
  3. Step 3: Cross multiply
    6,902.82x = 9,520.74 × 4,382.74
  4. Step 4: Simplify right side
    6,902.82x = 41,726,928.03
  5. Step 5: Solve for x
    x = 41,726,928.03/6,902.82
  6. Step 6: Final answer
    x = 6,044.91

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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.