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Finding the Fourth Proportional to 6,611.55, 9,124.52 and 3,627.96

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Solution

The fourth proportional to 6,611.55, 9,124.52 and 3,627.96 is: 5,006.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,611.55 : 9,124.52 = 3,627.96 : x
  2. Step 2: Convert to fraction form
    6,611.55/9,124.52 = 3,627.96/x
  3. Step 3: Cross multiply
    6,611.55x = 9,124.52 × 3,627.96
  4. Step 4: Simplify right side
    6,611.55x = 33,103,375.44
  5. Step 5: Solve for x
    x = 33,103,375.44/6,611.55
  6. Step 6: Final answer
    x = 5,006.90

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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.