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Finding the Fourth Proportional to 67,033.72, 100,512.12 and 27,558.28

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Solution

The fourth proportional to 67,033.72, 100,512.12 and 27,558.28 is: 41,321.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,033.72 : 100,512.12 = 27,558.28 : x
  2. Step 2: Convert to fraction form
    67,033.72/100,512.12 = 27,558.28/x
  3. Step 3: Cross multiply
    67,033.72x = 100,512.12 × 27,558.28
  4. Step 4: Simplify right side
    67,033.72x = 2,769,941,146.35
  5. Step 5: Solve for x
    x = 2,769,941,146.35/67,033.72
  6. Step 6: Final answer
    x = 41,321.61

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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.