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Finding the Fourth Proportional to 8,408.83, 11,520.15 and 8,093.54

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Solution

The fourth proportional to 8,408.83, 11,520.15 and 8,093.54 is: 11,088.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,408.83 : 11,520.15 = 8,093.54 : x
  2. Step 2: Convert to fraction form
    8,408.83/11,520.15 = 8,093.54/x
  3. Step 3: Cross multiply
    8,408.83x = 11,520.15 × 8,093.54
  4. Step 4: Simplify right side
    8,408.83x = 93,238,737.23
  5. Step 5: Solve for x
    x = 93,238,737.23/8,408.83
  6. Step 6: Final answer
    x = 11,088.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.