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Finding the Fourth Proportional to 22,563.69, 33,836.19 and 8,521.32

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Solution

The fourth proportional to 22,563.69, 33,836.19 and 8,521.32 is: 12,778.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,563.69 : 33,836.19 = 8,521.32 : x
  2. Step 2: Convert to fraction form
    22,563.69/33,836.19 = 8,521.32/x
  3. Step 3: Cross multiply
    22,563.69x = 33,836.19 × 8,521.32
  4. Step 4: Simplify right side
    22,563.69x = 288,329,002.57
  5. Step 5: Solve for x
    x = 288,329,002.57/22,563.69
  6. Step 6: Final answer
    x = 12,778.45

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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.