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Finding the Fourth Proportional to 8,235.92, 12,355.90 and 2,392.58

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Solution

The fourth proportional to 8,235.92, 12,355.90 and 2,392.58 is: 3,589.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,235.92 : 12,355.90 = 2,392.58 : x
  2. Step 2: Convert to fraction form
    8,235.92/12,355.90 = 2,392.58/x
  3. Step 3: Cross multiply
    8,235.92x = 12,355.90 × 2,392.58
  4. Step 4: Simplify right side
    8,235.92x = 29,562,479.22
  5. Step 5: Solve for x
    x = 29,562,479.22/8,235.92
  6. Step 6: Final answer
    x = 3,589.46

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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.