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Finding the Fourth Proportional to 3,884.88, 5,829.95 and 1,692.34

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Solution

The fourth proportional to 3,884.88, 5,829.95 and 1,692.34 is: 2,539.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,884.88 : 5,829.95 = 1,692.34 : x
  2. Step 2: Convert to fraction form
    3,884.88/5,829.95 = 1,692.34/x
  3. Step 3: Cross multiply
    3,884.88x = 5,829.95 × 1,692.34
  4. Step 4: Simplify right side
    3,884.88x = 9,866,257.58
  5. Step 5: Solve for x
    x = 9,866,257.58/3,884.88
  6. Step 6: Final answer
    x = 2,539.66

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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.