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Finding the Fourth Proportional to 8,243.46, 11,375.98 and 4,887.92

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Solution

The fourth proportional to 8,243.46, 11,375.98 and 4,887.92 is: 6,745.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,243.46 : 11,375.98 = 4,887.92 : x
  2. Step 2: Convert to fraction form
    8,243.46/11,375.98 = 4,887.92/x
  3. Step 3: Cross multiply
    8,243.46x = 11,375.98 × 4,887.92
  4. Step 4: Simplify right side
    8,243.46x = 55,604,880.16
  5. Step 5: Solve for x
    x = 55,604,880.16/8,243.46
  6. Step 6: Final answer
    x = 6,745.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.