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Finding the Fourth Proportional to 22,395.20, 33,581.47 and 9,919.05

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Solution

The fourth proportional to 22,395.20, 33,581.47 and 9,919.05 is: 14,873.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,395.20 : 33,581.47 = 9,919.05 : x
  2. Step 2: Convert to fraction form
    22,395.20/33,581.47 = 9,919.05/x
  3. Step 3: Cross multiply
    22,395.20x = 33,581.47 × 9,919.05
  4. Step 4: Simplify right side
    22,395.20x = 333,096,425.84
  5. Step 5: Solve for x
    x = 333,096,425.84/22,395.20
  6. Step 6: Final answer
    x = 14,873.56

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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.