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Finding the Fourth Proportional to 3,531.84, 5,296.48 and 1,682.88

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Solution

The fourth proportional to 3,531.84, 5,296.48 and 1,682.88 is: 2,523.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,531.84 : 5,296.48 = 1,682.88 : x
  2. Step 2: Convert to fraction form
    3,531.84/5,296.48 = 1,682.88/x
  3. Step 3: Cross multiply
    3,531.84x = 5,296.48 × 1,682.88
  4. Step 4: Simplify right side
    3,531.84x = 8,913,340.26
  5. Step 5: Solve for x
    x = 8,913,340.26/3,531.84
  6. Step 6: Final answer
    x = 2,523.71

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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.