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Finding the Fourth Proportional to 5,939.44, 8,188.98 and 3,811.22

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Solution

The fourth proportional to 5,939.44, 8,188.98 and 3,811.22 is: 5,254.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,939.44 : 8,188.98 = 3,811.22 : x
  2. Step 2: Convert to fraction form
    5,939.44/8,188.98 = 3,811.22/x
  3. Step 3: Cross multiply
    5,939.44x = 8,188.98 × 3,811.22
  4. Step 4: Simplify right side
    5,939.44x = 31,209,963.41
  5. Step 5: Solve for x
    x = 31,209,963.41/5,939.44
  6. Step 6: Final answer
    x = 5,254.70

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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.