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Finding the Fourth Proportional to 57,331.40, 85,968.30 and 26,131.40

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Solution

The fourth proportional to 57,331.40, 85,968.30 and 26,131.40 is: 39,183.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,331.40 : 85,968.30 = 26,131.40 : x
  2. Step 2: Convert to fraction form
    57,331.40/85,968.30 = 26,131.40/x
  3. Step 3: Cross multiply
    57,331.40x = 85,968.30 × 26,131.40
  4. Step 4: Simplify right side
    57,331.40x = 2,246,472,034.62
  5. Step 5: Solve for x
    x = 2,246,472,034.62/57,331.40
  6. Step 6: Final answer
    x = 39,183.97

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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.