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Finding the Fourth Proportional to 6,611.94, 9,924.39 and 3,151.62

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Solution

The fourth proportional to 6,611.94, 9,924.39 and 3,151.62 is: 4,730.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,611.94 : 9,924.39 = 3,151.62 : x
  2. Step 2: Convert to fraction form
    6,611.94/9,924.39 = 3,151.62/x
  3. Step 3: Cross multiply
    6,611.94x = 9,924.39 × 3,151.62
  4. Step 4: Simplify right side
    6,611.94x = 31,277,906.01
  5. Step 5: Solve for x
    x = 31,277,906.01/6,611.94
  6. Step 6: Final answer
    x = 4,730.52

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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.