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Finding the Fourth Proportional to 29,859.50, 41,181.90 and 18,521.12

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Solution

The fourth proportional to 29,859.50, 41,181.90 and 18,521.12 is: 25,544.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,859.50 : 41,181.90 = 18,521.12 : x
  2. Step 2: Convert to fraction form
    29,859.50/41,181.90 = 18,521.12/x
  3. Step 3: Cross multiply
    29,859.50x = 41,181.90 × 18,521.12
  4. Step 4: Simplify right side
    29,859.50x = 762,734,911.73
  5. Step 5: Solve for x
    x = 762,734,911.73/29,859.50
  6. Step 6: Final answer
    x = 25,544.13

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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.