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Finding the Fourth Proportional to 41,393.76, 57,056.80 and 27,960.80

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Solution

The fourth proportional to 41,393.76, 57,056.80 and 27,960.80 is: 38,540.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,393.76 : 57,056.80 = 27,960.80 : x
  2. Step 2: Convert to fraction form
    41,393.76/57,056.80 = 27,960.80/x
  3. Step 3: Cross multiply
    41,393.76x = 57,056.80 × 27,960.80
  4. Step 4: Simplify right side
    41,393.76x = 1,595,353,773.44
  5. Step 5: Solve for x
    x = 1,595,353,773.44/41,393.76
  6. Step 6: Final answer
    x = 38,540.92

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Similar ratio
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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.