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Finding the Fourth Proportional to 18,843.42, 26,003.67 and 10,885.47

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Solution

The fourth proportional to 18,843.42, 26,003.67 and 10,885.47 is: 15,021.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,843.42 : 26,003.67 = 10,885.47 : x
  2. Step 2: Convert to fraction form
    18,843.42/26,003.67 = 10,885.47/x
  3. Step 3: Cross multiply
    18,843.42x = 26,003.67 × 10,885.47
  4. Step 4: Simplify right side
    18,843.42x = 283,062,169.67
  5. Step 5: Solve for x
    x = 283,062,169.67/18,843.42
  6. Step 6: Final answer
    x = 15,021.80

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