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Finding the Fourth Proportional to 20,593.44, 28,418.92 and 11,162.00

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Solution

The fourth proportional to 20,593.44, 28,418.92 and 11,162.00 is: 15,403.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,593.44 : 28,418.92 = 11,162.00 : x
  2. Step 2: Convert to fraction form
    20,593.44/28,418.92 = 11,162.00/x
  3. Step 3: Cross multiply
    20,593.44x = 28,418.92 × 11,162.00
  4. Step 4: Simplify right side
    20,593.44x = 317,212,028.18
  5. Step 5: Solve for x
    x = 317,212,028.18/20,593.44
  6. Step 6: Final answer
    x = 15,403.55

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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.