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Finding the Fourth Proportional to 18,644.34, 27,933.70 and 17,534.44

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Solution

The fourth proportional to 18,644.34, 27,933.70 and 17,534.44 is: 26,270.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,644.34 : 27,933.70 = 17,534.44 : x
  2. Step 2: Convert to fraction form
    18,644.34/27,933.70 = 17,534.44/x
  3. Step 3: Cross multiply
    18,644.34x = 27,933.70 × 17,534.44
  4. Step 4: Simplify right side
    18,644.34x = 489,801,559.29
  5. Step 5: Solve for x
    x = 489,801,559.29/18,644.34
  6. Step 6: Final answer
    x = 26,270.80

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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.