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Finding the Fourth Proportional to 3,893.60, 5,826.44 and 3,632.91

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Solution

The fourth proportional to 3,893.60, 5,826.44 and 3,632.91 is: 5,436.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,893.60 : 5,826.44 = 3,632.91 : x
  2. Step 2: Convert to fraction form
    3,893.60/5,826.44 = 3,632.91/x
  3. Step 3: Cross multiply
    3,893.60x = 5,826.44 × 3,632.91
  4. Step 4: Simplify right side
    3,893.60x = 21,166,913.98
  5. Step 5: Solve for x
    x = 21,166,913.98/3,893.60
  6. Step 6: Final answer
    x = 5,436.34

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1.5x scale

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.