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Finding the Fourth Proportional to 2,447.52, 3,671.49 and 692.54

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Solution

The fourth proportional to 2,447.52, 3,671.49 and 692.54 is: 1,038.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,447.52 : 3,671.49 = 692.54 : x
  2. Step 2: Convert to fraction form
    2,447.52/3,671.49 = 692.54/x
  3. Step 3: Cross multiply
    2,447.52x = 3,671.49 × 692.54
  4. Step 4: Simplify right side
    2,447.52x = 2,542,635.33
  5. Step 5: Solve for x
    x = 2,542,635.33/2,447.52
  6. Step 6: Final answer
    x = 1,038.86

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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.