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Finding the Fourth Proportional to 55,168.80, 82,773.24 and 27,085.86

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Solution

The fourth proportional to 55,168.80, 82,773.24 and 27,085.86 is: 40,638.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,168.80 : 82,773.24 = 27,085.86 : x
  2. Step 2: Convert to fraction form
    55,168.80/82,773.24 = 27,085.86/x
  3. Step 3: Cross multiply
    55,168.80x = 82,773.24 × 27,085.86
  4. Step 4: Simplify right side
    55,168.80x = 2,241,984,390.39
  5. Step 5: Solve for x
    x = 2,241,984,390.39/55,168.80
  6. Step 6: Final answer
    x = 40,638.63

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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.