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Finding the Fourth Proportional to 57,190.60, 85,794.06 and 21,664.96

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Solution

The fourth proportional to 57,190.60, 85,794.06 and 21,664.96 is: 32,500.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,190.60 : 85,794.06 = 21,664.96 : x
  2. Step 2: Convert to fraction form
    57,190.60/85,794.06 = 21,664.96/x
  3. Step 3: Cross multiply
    57,190.60x = 85,794.06 × 21,664.96
  4. Step 4: Simplify right side
    57,190.60x = 1,858,724,878.14
  5. Step 5: Solve for x
    x = 1,858,724,878.14/57,190.60
  6. Step 6: Final answer
    x = 32,500.53

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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.