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Finding the Fourth Proportional to 29,611.20, 40,863.96 and 17,672.22

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Solution

The fourth proportional to 29,611.20, 40,863.96 and 17,672.22 is: 24,387.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,611.20 : 40,863.96 = 17,672.22 : x
  2. Step 2: Convert to fraction form
    29,611.20/40,863.96 = 17,672.22/x
  3. Step 3: Cross multiply
    29,611.20x = 40,863.96 × 17,672.22
  4. Step 4: Simplify right side
    29,611.20x = 722,156,891.19
  5. Step 5: Solve for x
    x = 722,156,891.19/29,611.20
  6. Step 6: Final answer
    x = 24,387.96

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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.