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Finding the Fourth Proportional to 22,228.80, 33,343.20 and 9,078.18

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Solution

The fourth proportional to 22,228.80, 33,343.20 and 9,078.18 is: 13,617.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,228.80 : 33,343.20 = 9,078.18 : x
  2. Step 2: Convert to fraction form
    22,228.80/33,343.20 = 9,078.18/x
  3. Step 3: Cross multiply
    22,228.80x = 33,343.20 × 9,078.18
  4. Step 4: Simplify right side
    22,228.80x = 302,695,571.38
  5. Step 5: Solve for x
    x = 302,695,571.38/22,228.80
  6. Step 6: Final answer
    x = 13,617.27

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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.