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Finding the Fourth Proportional to 17,872.74, 24,680.07 and 11,169.81

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Solution

The fourth proportional to 17,872.74, 24,680.07 and 11,169.81 is: 15,424.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,872.74 : 24,680.07 = 11,169.81 : x
  2. Step 2: Convert to fraction form
    17,872.74/24,680.07 = 11,169.81/x
  3. Step 3: Cross multiply
    17,872.74x = 24,680.07 × 11,169.81
  4. Step 4: Simplify right side
    17,872.74x = 275,671,692.69
  5. Step 5: Solve for x
    x = 275,671,692.69/17,872.74
  6. Step 6: Final answer
    x = 15,424.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.