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Finding the Fourth Proportional to 11,928.38, 17,805.36 and 11,061.02

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Solution

The fourth proportional to 11,928.38, 17,805.36 and 11,061.02 is: 16,510.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,928.38 : 17,805.36 = 11,061.02 : x
  2. Step 2: Convert to fraction form
    11,928.38/17,805.36 = 11,061.02/x
  3. Step 3: Cross multiply
    11,928.38x = 17,805.36 × 11,061.02
  4. Step 4: Simplify right side
    11,928.38x = 196,945,443.07
  5. Step 5: Solve for x
    x = 196,945,443.07/11,928.38
  6. Step 6: Final answer
    x = 16,510.66

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.