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Finding the Fourth Proportional to 11,039.95, 16,548.27 and 5,409.85

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Solution

The fourth proportional to 11,039.95, 16,548.27 and 5,409.85 is: 8,109.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,039.95 : 16,548.27 = 5,409.85 : x
  2. Step 2: Convert to fraction form
    11,039.95/16,548.27 = 5,409.85/x
  3. Step 3: Cross multiply
    11,039.95x = 16,548.27 × 5,409.85
  4. Step 4: Simplify right side
    11,039.95x = 89,523,658.46
  5. Step 5: Solve for x
    x = 89,523,658.46/11,039.95
  6. Step 6: Final answer
    x = 8,109.06

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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.