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Finding the Fourth Proportional to 57,396.89, 85,935.57 and 43,314.23

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Solution

The fourth proportional to 57,396.89, 85,935.57 and 43,314.23 is: 64,850.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,396.89 : 85,935.57 = 43,314.23 : x
  2. Step 2: Convert to fraction form
    57,396.89/85,935.57 = 43,314.23/x
  3. Step 3: Cross multiply
    57,396.89x = 85,935.57 × 43,314.23
  4. Step 4: Simplify right side
    57,396.89x = 3,722,233,096.57
  5. Step 5: Solve for x
    x = 3,722,233,096.57/57,396.89
  6. Step 6: Final answer
    x = 64,850.78

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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.