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Finding the Fourth Proportional to 67,321.44, 92,904.03 and 38,633.45

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Solution

The fourth proportional to 67,321.44, 92,904.03 and 38,633.45 is: 53,314.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,321.44 : 92,904.03 = 38,633.45 : x
  2. Step 2: Convert to fraction form
    67,321.44/92,904.03 = 38,633.45/x
  3. Step 3: Cross multiply
    67,321.44x = 92,904.03 × 38,633.45
  4. Step 4: Simplify right side
    67,321.44x = 3,589,203,197.80
  5. Step 5: Solve for x
    x = 3,589,203,197.80/67,321.44
  6. Step 6: Final answer
    x = 53,314.42

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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.