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Finding the Fourth Proportional to 43,676.76, 65,540.54 and 18,374.42

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Solution

The fourth proportional to 43,676.76, 65,540.54 and 18,374.42 is: 27,572.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,676.76 : 65,540.54 = 18,374.42 : x
  2. Step 2: Convert to fraction form
    43,676.76/65,540.54 = 18,374.42/x
  3. Step 3: Cross multiply
    43,676.76x = 65,540.54 × 18,374.42
  4. Step 4: Simplify right side
    43,676.76x = 1,204,269,408.99
  5. Step 5: Solve for x
    x = 1,204,269,408.99/43,676.76
  6. Step 6: Final answer
    x = 27,572.32

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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.