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Finding the Fourth Proportional to 8,922.60, 13,382.84 and 2,682.60

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Solution

The fourth proportional to 8,922.60, 13,382.84 and 2,682.60 is: 4,023.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,922.60 : 13,382.84 = 2,682.60 : x
  2. Step 2: Convert to fraction form
    8,922.60/13,382.84 = 2,682.60/x
  3. Step 3: Cross multiply
    8,922.60x = 13,382.84 × 2,682.60
  4. Step 4: Simplify right side
    8,922.60x = 35,900,806.58
  5. Step 5: Solve for x
    x = 35,900,806.58/8,922.60
  6. Step 6: Final answer
    x = 4,023.58

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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.