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Finding the Fourth Proportional to 22,579.70, 33,857.10 and 7,776.41

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Solution

The fourth proportional to 22,579.70, 33,857.10 and 7,776.41 is: 11,660.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,579.70 : 33,857.10 = 7,776.41 : x
  2. Step 2: Convert to fraction form
    22,579.70/33,857.10 = 7,776.41/x
  3. Step 3: Cross multiply
    22,579.70x = 33,857.10 × 7,776.41
  4. Step 4: Simplify right side
    22,579.70x = 263,286,521.73
  5. Step 5: Solve for x
    x = 263,286,521.73/22,579.70
  6. Step 6: Final answer
    x = 11,660.32

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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.