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Finding the Fourth Proportional to 22,369.44, 33,555.60 and 13,116

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Solution

The fourth proportional to 22,369.44, 33,555.60 and 13,116 is: 19,674.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,369.44 : 33,555.60 = 13,116 : x
  2. Step 2: Convert to fraction form
    22,369.44/33,555.60 = 13,116/x
  3. Step 3: Cross multiply
    22,369.44x = 33,555.60 × 13,116
  4. Step 4: Simplify right side
    22,369.44x = 440,115,249.60
  5. Step 5: Solve for x
    x = 440,115,249.60/22,369.44
  6. Step 6: Final answer
    x = 19,674.84

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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.