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Finding the Fourth Proportional to 8,611.22, 11,883.42 and 5,074.34

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Solution

The fourth proportional to 8,611.22, 11,883.42 and 5,074.34 is: 7,002.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,611.22 : 11,883.42 = 5,074.34 : x
  2. Step 2: Convert to fraction form
    8,611.22/11,883.42 = 5,074.34/x
  3. Step 3: Cross multiply
    8,611.22x = 11,883.42 × 5,074.34
  4. Step 4: Simplify right side
    8,611.22x = 60,300,513.44
  5. Step 5: Solve for x
    x = 60,300,513.44/8,611.22
  6. Step 6: Final answer
    x = 7,002.55

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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.