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Finding the Fourth Proportional to 29,611.97, 40,863.87 and 16,691.15

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Solution

The fourth proportional to 29,611.97, 40,863.87 and 16,691.15 is: 23,033.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,611.97 : 40,863.87 = 16,691.15 : x
  2. Step 2: Convert to fraction form
    29,611.97/40,863.87 = 16,691.15/x
  3. Step 3: Cross multiply
    29,611.97x = 40,863.87 × 16,691.15
  4. Step 4: Simplify right side
    29,611.97x = 682,064,779.43
  5. Step 5: Solve for x
    x = 682,064,779.43/29,611.97
  6. Step 6: Final answer
    x = 23,033.42

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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.