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Finding the Fourth Proportional to 29,107.56, 43,661.04 and 12,453.48

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Solution

The fourth proportional to 29,107.56, 43,661.04 and 12,453.48 is: 18,680.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,107.56 : 43,661.04 = 12,453.48 : x
  2. Step 2: Convert to fraction form
    29,107.56/43,661.04 = 12,453.48/x
  3. Step 3: Cross multiply
    29,107.56x = 43,661.04 × 12,453.48
  4. Step 4: Simplify right side
    29,107.56x = 543,731,888.42
  5. Step 5: Solve for x
    x = 543,731,888.42/29,107.56
  6. Step 6: Final answer
    x = 18,680.09

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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.