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Finding the Fourth Proportional to 8,553.45, 12,822.44 and 3,357.93

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Solution

The fourth proportional to 8,553.45, 12,822.44 and 3,357.93 is: 5,033.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,553.45 : 12,822.44 = 3,357.93 : x
  2. Step 2: Convert to fraction form
    8,553.45/12,822.44 = 3,357.93/x
  3. Step 3: Cross multiply
    8,553.45x = 12,822.44 × 3,357.93
  4. Step 4: Simplify right side
    8,553.45x = 43,056,839.16
  5. Step 5: Solve for x
    x = 43,056,839.16/8,553.45
  6. Step 6: Final answer
    x = 5,033.86

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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.