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Finding the Fourth Proportional to 8,942.16, 13,418.10 and 3,751.68

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Solution

The fourth proportional to 8,942.16, 13,418.10 and 3,751.68 is: 5,629.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,942.16 : 13,418.10 = 3,751.68 : x
  2. Step 2: Convert to fraction form
    8,942.16/13,418.10 = 3,751.68/x
  3. Step 3: Cross multiply
    8,942.16x = 13,418.10 × 3,751.68
  4. Step 4: Simplify right side
    8,942.16x = 50,340,417.41
  5. Step 5: Solve for x
    x = 50,340,417.41/8,942.16
  6. Step 6: Final answer
    x = 5,629.56

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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.