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Finding the Fourth Proportional to 22,069.85, 30,456.65 and 11,998.07

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Solution

The fourth proportional to 22,069.85, 30,456.65 and 11,998.07 is: 16,557.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,069.85 : 30,456.65 = 11,998.07 : x
  2. Step 2: Convert to fraction form
    22,069.85/30,456.65 = 11,998.07/x
  3. Step 3: Cross multiply
    22,069.85x = 30,456.65 × 11,998.07
  4. Step 4: Simplify right side
    22,069.85x = 365,420,840.57
  5. Step 5: Solve for x
    x = 365,420,840.57/22,069.85
  6. Step 6: Final answer
    x = 16,557.47

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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.