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Finding the Fourth Proportional to 47,757.42, 71,611.50 and 21,439.59

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Solution

The fourth proportional to 47,757.42, 71,611.50 and 21,439.59 is: 32,148.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,757.42 : 71,611.50 = 21,439.59 : x
  2. Step 2: Convert to fraction form
    47,757.42/71,611.50 = 21,439.59/x
  3. Step 3: Cross multiply
    47,757.42x = 71,611.50 × 21,439.59
  4. Step 4: Simplify right side
    47,757.42x = 1,535,321,199.29
  5. Step 5: Solve for x
    x = 1,535,321,199.29/47,757.42
  6. Step 6: Final answer
    x = 32,148.33

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.