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Finding the Fourth Proportional to 67,135.93, 92,640.41 and 38,836.33

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Solution

The fourth proportional to 67,135.93, 92,640.41 and 38,836.33 is: 53,589.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,135.93 : 92,640.41 = 38,836.33 : x
  2. Step 2: Convert to fraction form
    67,135.93/92,640.41 = 38,836.33/x
  3. Step 3: Cross multiply
    67,135.93x = 92,640.41 × 38,836.33
  4. Step 4: Simplify right side
    67,135.93x = 3,597,813,339.91
  5. Step 5: Solve for x
    x = 3,597,813,339.91/67,135.93
  6. Step 6: Final answer
    x = 53,589.98

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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.