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Finding the Fourth Proportional to 66,726.62, 92,078.76 and 36,505.92

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Solution

The fourth proportional to 66,726.62, 92,078.76 and 36,505.92 is: 50,375.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,726.62 : 92,078.76 = 36,505.92 : x
  2. Step 2: Convert to fraction form
    66,726.62/92,078.76 = 36,505.92/x
  3. Step 3: Cross multiply
    66,726.62x = 92,078.76 × 36,505.92
  4. Step 4: Simplify right side
    66,726.62x = 3,361,419,846.26
  5. Step 5: Solve for x
    x = 3,361,419,846.26/66,726.62
  6. Step 6: Final answer
    x = 50,375.99

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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.