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Finding the Fourth Proportional to 10,559.44, 15,842.98 and 4,942.04

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Solution

The fourth proportional to 10,559.44, 15,842.98 and 4,942.04 is: 7,414.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,559.44 : 15,842.98 = 4,942.04 : x
  2. Step 2: Convert to fraction form
    10,559.44/15,842.98 = 4,942.04/x
  3. Step 3: Cross multiply
    10,559.44x = 15,842.98 × 4,942.04
  4. Step 4: Simplify right side
    10,559.44x = 78,296,640.88
  5. Step 5: Solve for x
    x = 78,296,640.88/10,559.44
  6. Step 6: Final answer
    x = 7,414.85

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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.