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Finding the Fourth Proportional to 37,617.50, 51,912.24 and 20,850.50

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Solution

The fourth proportional to 37,617.50, 51,912.24 and 20,850.50 is: 28,773.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,617.50 : 51,912.24 = 20,850.50 : x
  2. Step 2: Convert to fraction form
    37,617.50/51,912.24 = 20,850.50/x
  3. Step 3: Cross multiply
    37,617.50x = 51,912.24 × 20,850.50
  4. Step 4: Simplify right side
    37,617.50x = 1,082,396,160.12
  5. Step 5: Solve for x
    x = 1,082,396,160.12/37,617.50
  6. Step 6: Final answer
    x = 28,773.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.