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Finding the Fourth Proportional to 2,668.87, 4,003.32 and 937.48

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Solution

The fourth proportional to 2,668.87, 4,003.32 and 937.48 is: 1,406.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,668.87 : 4,003.32 = 937.48 : x
  2. Step 2: Convert to fraction form
    2,668.87/4,003.32 = 937.48/x
  3. Step 3: Cross multiply
    2,668.87x = 4,003.32 × 937.48
  4. Step 4: Simplify right side
    2,668.87x = 3,753,032.43
  5. Step 5: Solve for x
    x = 3,753,032.43/2,668.87
  6. Step 6: Final answer
    x = 1,406.23

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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.