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Finding the Fourth Proportional to 5,611.43, 7,743.81 and 3,093.63

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Solution

The fourth proportional to 5,611.43, 7,743.81 and 3,093.63 is: 4,269.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,611.43 : 7,743.81 = 3,093.63 : x
  2. Step 2: Convert to fraction form
    5,611.43/7,743.81 = 3,093.63/x
  3. Step 3: Cross multiply
    5,611.43x = 7,743.81 × 3,093.63
  4. Step 4: Simplify right side
    5,611.43x = 23,956,482.93
  5. Step 5: Solve for x
    x = 23,956,482.93/5,611.43
  6. Step 6: Final answer
    x = 4,269.23

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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.