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Finding the Fourth Proportional to 7,745.15, 11,617.72 and 7,350.73

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Solution

The fourth proportional to 7,745.15, 11,617.72 and 7,350.73 is: 11,026.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,745.15 : 11,617.72 = 7,350.73 : x
  2. Step 2: Convert to fraction form
    7,745.15/11,617.72 = 7,350.73/x
  3. Step 3: Cross multiply
    7,745.15x = 11,617.72 × 7,350.73
  4. Step 4: Simplify right side
    7,745.15x = 85,398,712.27
  5. Step 5: Solve for x
    x = 85,398,712.27/7,745.15
  6. Step 6: Final answer
    x = 11,026.10

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Double scale
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Similar ratio
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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.