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Finding the Fourth Proportional to 69,620.59, 104,474.82 and 29,639.55

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Solution

The fourth proportional to 69,620.59, 104,474.82 and 29,639.55 is: 44,478.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,620.59 : 104,474.82 = 29,639.55 : x
  2. Step 2: Convert to fraction form
    69,620.59/104,474.82 = 29,639.55/x
  3. Step 3: Cross multiply
    69,620.59x = 104,474.82 × 29,639.55
  4. Step 4: Simplify right side
    69,620.59x = 3,096,586,651.13
  5. Step 5: Solve for x
    x = 3,096,586,651.13/69,620.59
  6. Step 6: Final answer
    x = 44,478.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.