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Finding the Fourth Proportional to 67,261.20, 100,883.70 and 27,814.20

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Solution

The fourth proportional to 67,261.20, 100,883.70 and 27,814.20 is: 41,717.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,261.20 : 100,883.70 = 27,814.20 : x
  2. Step 2: Convert to fraction form
    67,261.20/100,883.70 = 27,814.20/x
  3. Step 3: Cross multiply
    67,261.20x = 100,883.70 × 27,814.20
  4. Step 4: Simplify right side
    67,261.20x = 2,805,999,408.54
  5. Step 5: Solve for x
    x = 2,805,999,408.54/67,261.20
  6. Step 6: Final answer
    x = 41,717.95

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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.