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Finding the Fourth Proportional to 28,704.44, 43,057.44 and 8,982.56

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Solution

The fourth proportional to 28,704.44, 43,057.44 and 8,982.56 is: 13,474.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,704.44 : 43,057.44 = 8,982.56 : x
  2. Step 2: Convert to fraction form
    28,704.44/43,057.44 = 8,982.56/x
  3. Step 3: Cross multiply
    28,704.44x = 43,057.44 × 8,982.56
  4. Step 4: Simplify right side
    28,704.44x = 386,766,038.25
  5. Step 5: Solve for x
    x = 386,766,038.25/28,704.44
  6. Step 6: Final answer
    x = 13,474.08

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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.