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Finding the Fourth Proportional to 3,079.71, 4,250.04 and 1,682.46

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Solution

The fourth proportional to 3,079.71, 4,250.04 and 1,682.46 is: 2,321.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,079.71 : 4,250.04 = 1,682.46 : x
  2. Step 2: Convert to fraction form
    3,079.71/4,250.04 = 1,682.46/x
  3. Step 3: Cross multiply
    3,079.71x = 4,250.04 × 1,682.46
  4. Step 4: Simplify right side
    3,079.71x = 7,150,522.30
  5. Step 5: Solve for x
    x = 7,150,522.30/3,079.71
  6. Step 6: Final answer
    x = 2,321.82

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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.