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Finding the Fourth Proportional to 57,231.80, 85,841.94 and 15,684.92

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Solution

The fourth proportional to 57,231.80, 85,841.94 and 15,684.92 is: 23,525.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,231.80 : 85,841.94 = 15,684.92 : x
  2. Step 2: Convert to fraction form
    57,231.80/85,841.94 = 15,684.92/x
  3. Step 3: Cross multiply
    57,231.80x = 85,841.94 × 15,684.92
  4. Step 4: Simplify right side
    57,231.80x = 1,346,423,961.54
  5. Step 5: Solve for x
    x = 1,346,423,961.54/57,231.80
  6. Step 6: Final answer
    x = 23,525.80

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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.