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Finding the Fourth Proportional to 22,379.52, 33,554.88 and 8,520.96

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Solution

The fourth proportional to 22,379.52, 33,554.88 and 8,520.96 is: 12,775.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,379.52 : 33,554.88 = 8,520.96 : x
  2. Step 2: Convert to fraction form
    22,379.52/33,554.88 = 8,520.96/x
  3. Step 3: Cross multiply
    22,379.52x = 33,554.88 × 8,520.96
  4. Step 4: Simplify right side
    22,379.52x = 285,919,790.28
  5. Step 5: Solve for x
    x = 285,919,790.28/22,379.52
  6. Step 6: Final answer
    x = 12,775.96

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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.