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Finding the Fourth Proportional to 8,235.46, 12,353.11 and 3,558.77

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Solution

The fourth proportional to 8,235.46, 12,353.11 and 3,558.77 is: 5,338.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,235.46 : 12,353.11 = 3,558.77 : x
  2. Step 2: Convert to fraction form
    8,235.46/12,353.11 = 3,558.77/x
  3. Step 3: Cross multiply
    8,235.46x = 12,353.11 × 3,558.77
  4. Step 4: Simplify right side
    8,235.46x = 43,961,852.94
  5. Step 5: Solve for x
    x = 43,961,852.94/8,235.46
  6. Step 6: Final answer
    x = 5,338.12

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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.