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Finding the Fourth Proportional to 22,190.49, 30,623.13 and 12,119.22

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Solution

The fourth proportional to 22,190.49, 30,623.13 and 12,119.22 is: 16,724.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,190.49 : 30,623.13 = 12,119.22 : x
  2. Step 2: Convert to fraction form
    22,190.49/30,623.13 = 12,119.22/x
  3. Step 3: Cross multiply
    22,190.49x = 30,623.13 × 12,119.22
  4. Step 4: Simplify right side
    22,190.49x = 371,128,449.56
  5. Step 5: Solve for x
    x = 371,128,449.56/22,190.49
  6. Step 6: Final answer
    x = 16,724.66

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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.