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Finding the Fourth Proportional to 67,143.88, 92,651.22 and 38,844.28

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Solution

The fourth proportional to 67,143.88, 92,651.22 and 38,844.28 is: 53,600.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,143.88 : 92,651.22 = 38,844.28 : x
  2. Step 2: Convert to fraction form
    67,143.88/92,651.22 = 38,844.28/x
  3. Step 3: Cross multiply
    67,143.88x = 92,651.22 × 38,844.28
  4. Step 4: Simplify right side
    67,143.88x = 3,598,969,932.02
  5. Step 5: Solve for x
    x = 3,598,969,932.02/67,143.88
  6. Step 6: Final answer
    x = 53,600.86

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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.