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Finding the Fourth Proportional to 18,118.62, 24,965.37 and 16,871.94

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Solution

The fourth proportional to 18,118.62, 24,965.37 and 16,871.94 is: 23,247.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,118.62 : 24,965.37 = 16,871.94 : x
  2. Step 2: Convert to fraction form
    18,118.62/24,965.37 = 16,871.94/x
  3. Step 3: Cross multiply
    18,118.62x = 24,965.37 × 16,871.94
  4. Step 4: Simplify right side
    18,118.62x = 421,214,224.72
  5. Step 5: Solve for x
    x = 421,214,224.72/18,118.62
  6. Step 6: Final answer
    x = 23,247.59

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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.