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Finding the Fourth Proportional to 36,638.34, 54,961.49 and 11,672.52

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Solution

The fourth proportional to 36,638.34, 54,961.49 and 11,672.52 is: 17,510.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,638.34 : 54,961.49 = 11,672.52 : x
  2. Step 2: Convert to fraction form
    36,638.34/54,961.49 = 11,672.52/x
  3. Step 3: Cross multiply
    36,638.34x = 54,961.49 × 11,672.52
  4. Step 4: Simplify right side
    36,638.34x = 641,539,091.25
  5. Step 5: Solve for x
    x = 641,539,091.25/36,638.34
  6. Step 6: Final answer
    x = 17,510.05

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.