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Finding the Fourth Proportional to 67,151.81, 92,664.92 and 38,861.75

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Solution

The fourth proportional to 67,151.81, 92,664.92 and 38,861.75 is: 53,626.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,151.81 : 92,664.92 = 38,861.75 : x
  2. Step 2: Convert to fraction form
    67,151.81/92,664.92 = 38,861.75/x
  3. Step 3: Cross multiply
    67,151.81x = 92,664.92 × 38,861.75
  4. Step 4: Simplify right side
    67,151.81x = 3,601,120,588.64
  5. Step 5: Solve for x
    x = 3,601,120,588.64/67,151.81
  6. Step 6: Final answer
    x = 53,626.56

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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.