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Finding the Fourth Proportional to 22,921.90, 34,375.62 and 8,880.96

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Solution

The fourth proportional to 22,921.90, 34,375.62 and 8,880.96 is: 13,318.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,921.90 : 34,375.62 = 8,880.96 : x
  2. Step 2: Convert to fraction form
    22,921.90/34,375.62 = 8,880.96/x
  3. Step 3: Cross multiply
    22,921.90x = 34,375.62 × 8,880.96
  4. Step 4: Simplify right side
    22,921.90x = 305,288,506.20
  5. Step 5: Solve for x
    x = 305,288,506.20/22,921.90
  6. Step 6: Final answer
    x = 13,318.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.