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Finding the Fourth Proportional to 28,796.88, 43,183.92 and 12,164.88

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Solution

The fourth proportional to 28,796.88, 43,183.92 and 12,164.88 is: 18,242.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,796.88 : 43,183.92 = 12,164.88 : x
  2. Step 2: Convert to fraction form
    28,796.88/43,183.92 = 12,164.88/x
  3. Step 3: Cross multiply
    28,796.88x = 43,183.92 × 12,164.88
  4. Step 4: Simplify right side
    28,796.88x = 525,327,204.73
  5. Step 5: Solve for x
    x = 525,327,204.73/28,796.88
  6. Step 6: Final answer
    x = 18,242.50

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1.5x scale

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.