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Finding the Fourth Proportional to 51,396.44, 70,942.10 and 29,891.21

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Solution

The fourth proportional to 51,396.44, 70,942.10 and 29,891.21 is: 41,258.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,396.44 : 70,942.10 = 29,891.21 : x
  2. Step 2: Convert to fraction form
    51,396.44/70,942.10 = 29,891.21/x
  3. Step 3: Cross multiply
    51,396.44x = 70,942.10 × 29,891.21
  4. Step 4: Simplify right side
    51,396.44x = 2,120,544,704.77
  5. Step 5: Solve for x
    x = 2,120,544,704.77/51,396.44
  6. Step 6: Final answer
    x = 41,258.60

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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.