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Finding the Fourth Proportional to 12,190.28, 16,822.53 and 6,601.28

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Solution

The fourth proportional to 12,190.28, 16,822.53 and 6,601.28 is: 9,109.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,190.28 : 16,822.53 = 6,601.28 : x
  2. Step 2: Convert to fraction form
    12,190.28/16,822.53 = 6,601.28/x
  3. Step 3: Cross multiply
    12,190.28x = 16,822.53 × 6,601.28
  4. Step 4: Simplify right side
    12,190.28x = 111,050,230.84
  5. Step 5: Solve for x
    x = 111,050,230.84/12,190.28
  6. Step 6: Final answer
    x = 9,109.74

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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.