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Finding the Fourth Proportional to 29,405.69, 44,115.86 and 8,629.19

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Solution

The fourth proportional to 29,405.69, 44,115.86 and 8,629.19 is: 12,945.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,405.69 : 44,115.86 = 8,629.19 : x
  2. Step 2: Convert to fraction form
    29,405.69/44,115.86 = 8,629.19/x
  3. Step 3: Cross multiply
    29,405.69x = 44,115.86 × 8,629.19
  4. Step 4: Simplify right side
    29,405.69x = 380,684,137.95
  5. Step 5: Solve for x
    x = 380,684,137.95/29,405.69
  6. Step 6: Final answer
    x = 12,945.93

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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.