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Finding the Fourth Proportional to 57,234.80, 85,858.60 and 17,791.60

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Solution

The fourth proportional to 57,234.80, 85,858.60 and 17,791.60 is: 26,689.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,234.80 : 85,858.60 = 17,791.60 : x
  2. Step 2: Convert to fraction form
    57,234.80/85,858.60 = 17,791.60/x
  3. Step 3: Cross multiply
    57,234.80x = 85,858.60 × 17,791.60
  4. Step 4: Simplify right side
    57,234.80x = 1,527,561,867.76
  5. Step 5: Solve for x
    x = 1,527,561,867.76/57,234.80
  6. Step 6: Final answer
    x = 26,689.39

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1.5x scale

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.