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Finding the Fourth Proportional to 15,474.43, 21,355.01 and 8,401.11

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Solution

The fourth proportional to 15,474.43, 21,355.01 and 8,401.11 is: 11,593.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,474.43 : 21,355.01 = 8,401.11 : x
  2. Step 2: Convert to fraction form
    15,474.43/21,355.01 = 8,401.11/x
  3. Step 3: Cross multiply
    15,474.43x = 21,355.01 × 8,401.11
  4. Step 4: Simplify right side
    15,474.43x = 179,405,788.06
  5. Step 5: Solve for x
    x = 179,405,788.06/15,474.43
  6. Step 6: Final answer
    x = 11,593.69

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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.