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Finding the Fourth Proportional to 11,745.18, 16,189.95 and 8,901.18

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Solution

The fourth proportional to 11,745.18, 16,189.95 and 8,901.18 is: 12,269.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,745.18 : 16,189.95 = 8,901.18 : x
  2. Step 2: Convert to fraction form
    11,745.18/16,189.95 = 8,901.18/x
  3. Step 3: Cross multiply
    11,745.18x = 16,189.95 × 8,901.18
  4. Step 4: Simplify right side
    11,745.18x = 144,109,659.14
  5. Step 5: Solve for x
    x = 144,109,659.14/11,745.18
  6. Step 6: Final answer
    x = 12,269.69

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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.