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Finding the Fourth Proportional to 57,339.30, 85,836.15 and 50,427.30

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Solution

The fourth proportional to 57,339.30, 85,836.15 and 50,427.30 is: 75,488.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,339.30 : 85,836.15 = 50,427.30 : x
  2. Step 2: Convert to fraction form
    57,339.30/85,836.15 = 50,427.30/x
  3. Step 3: Cross multiply
    57,339.30x = 85,836.15 × 50,427.30
  4. Step 4: Simplify right side
    57,339.30x = 4,328,485,286.90
  5. Step 5: Solve for x
    x = 4,328,485,286.90/57,339.30
  6. Step 6: Final answer
    x = 75,488.98

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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.