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Finding the Fourth Proportional to 2,476.74, 3,715.09 and 834.43

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Solution

The fourth proportional to 2,476.74, 3,715.09 and 834.43 is: 1,251.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,476.74 : 3,715.09 = 834.43 : x
  2. Step 2: Convert to fraction form
    2,476.74/3,715.09 = 834.43/x
  3. Step 3: Cross multiply
    2,476.74x = 3,715.09 × 834.43
  4. Step 4: Simplify right side
    2,476.74x = 3,099,982.55
  5. Step 5: Solve for x
    x = 3,099,982.55/2,476.74
  6. Step 6: Final answer
    x = 1,251.64

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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.