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Finding the Fourth Proportional to 16,992.20, 25,466.70 and 8,208.20

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Solution

The fourth proportional to 16,992.20, 25,466.70 and 8,208.20 is: 12,301.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,992.20 : 25,466.70 = 8,208.20 : x
  2. Step 2: Convert to fraction form
    16,992.20/25,466.70 = 8,208.20/x
  3. Step 3: Cross multiply
    16,992.20x = 25,466.70 × 8,208.20
  4. Step 4: Simplify right side
    16,992.20x = 209,035,766.94
  5. Step 5: Solve for x
    x = 209,035,766.94/16,992.20
  6. Step 6: Final answer
    x = 12,301.87

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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.