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Finding the Fourth Proportional to 11,352.80, 16,996.80 and 11,028.80

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Solution

The fourth proportional to 11,352.80, 16,996.80 and 11,028.80 is: 16,511.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,352.80 : 16,996.80 = 11,028.80 : x
  2. Step 2: Convert to fraction form
    11,352.80/16,996.80 = 11,028.80/x
  3. Step 3: Cross multiply
    11,352.80x = 16,996.80 × 11,028.80
  4. Step 4: Simplify right side
    11,352.80x = 187,454,307.84
  5. Step 5: Solve for x
    x = 187,454,307.84/11,352.80
  6. Step 6: Final answer
    x = 16,511.72

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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.