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Finding the Fourth Proportional to 3,472.62, 4,792.12 and 1,900.68

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Solution

The fourth proportional to 3,472.62, 4,792.12 and 1,900.68 is: 2,622.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,472.62 : 4,792.12 = 1,900.68 : x
  2. Step 2: Convert to fraction form
    3,472.62/4,792.12 = 1,900.68/x
  3. Step 3: Cross multiply
    3,472.62x = 4,792.12 × 1,900.68
  4. Step 4: Simplify right side
    3,472.62x = 9,108,286.64
  5. Step 5: Solve for x
    x = 9,108,286.64/3,472.62
  6. Step 6: Final answer
    x = 2,622.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.