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Finding the Fourth Proportional to 7,951.82, 10,974 and 4,415.09

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Solution

The fourth proportional to 7,951.82, 10,974 and 4,415.09 is: 6,093.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,951.82 : 10,974 = 4,415.09 : x
  2. Step 2: Convert to fraction form
    7,951.82/10,974 = 4,415.09/x
  3. Step 3: Cross multiply
    7,951.82x = 10,974 × 4,415.09
  4. Step 4: Simplify right side
    7,951.82x = 48,451,197.66
  5. Step 5: Solve for x
    x = 48,451,197.66/7,951.82
  6. Step 6: Final answer
    x = 6,093.10

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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.