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Finding the Fourth Proportional to 8,559.44, 12,836.58 and 3,629

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Solution

The fourth proportional to 8,559.44, 12,836.58 and 3,629 is: 5,442.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,559.44 : 12,836.58 = 3,629 : x
  2. Step 2: Convert to fraction form
    8,559.44/12,836.58 = 3,629/x
  3. Step 3: Cross multiply
    8,559.44x = 12,836.58 × 3,629
  4. Step 4: Simplify right side
    8,559.44x = 46,583,948.82
  5. Step 5: Solve for x
    x = 46,583,948.82/8,559.44
  6. Step 6: Final answer
    x = 5,442.41

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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.