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Finding the Fourth Proportional to 8,922.43, 13,372.99 and 3,657.22

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Solution

The fourth proportional to 8,922.43, 13,372.99 and 3,657.22 is: 5,481.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,922.43 : 13,372.99 = 3,657.22 : x
  2. Step 2: Convert to fraction form
    8,922.43/13,372.99 = 3,657.22/x
  3. Step 3: Cross multiply
    8,922.43x = 13,372.99 × 3,657.22
  4. Step 4: Simplify right side
    8,922.43x = 48,907,966.49
  5. Step 5: Solve for x
    x = 48,907,966.49/8,922.43
  6. Step 6: Final answer
    x = 5,481.46

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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.