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Finding the Fourth Proportional to 22,228.20, 30,673.62 and 12,796.56

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Solution

The fourth proportional to 22,228.20, 30,673.62 and 12,796.56 is: 17,658.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,228.20 : 30,673.62 = 12,796.56 : x
  2. Step 2: Convert to fraction form
    22,228.20/30,673.62 = 12,796.56/x
  3. Step 3: Cross multiply
    22,228.20x = 30,673.62 × 12,796.56
  4. Step 4: Simplify right side
    22,228.20x = 392,516,818.75
  5. Step 5: Solve for x
    x = 392,516,818.75/22,228.20
  6. Step 6: Final answer
    x = 17,658.51

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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.