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Finding the Fourth Proportional to 11,243.20, 16,842.20 and 5,603.88

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Solution

The fourth proportional to 11,243.20, 16,842.20 and 5,603.88 is: 8,394.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,243.20 : 16,842.20 = 5,603.88 : x
  2. Step 2: Convert to fraction form
    11,243.20/16,842.20 = 5,603.88/x
  3. Step 3: Cross multiply
    11,243.20x = 16,842.20 × 5,603.88
  4. Step 4: Simplify right side
    11,243.20x = 94,381,667.74
  5. Step 5: Solve for x
    x = 94,381,667.74/11,243.20
  6. Step 6: Final answer
    x = 8,394.56

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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.