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Finding the Fourth Proportional to 8,247.54, 11,379.65 and 4,662.57

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Solution

The fourth proportional to 8,247.54, 11,379.65 and 4,662.57 is: 6,433.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,247.54 : 11,379.65 = 4,662.57 : x
  2. Step 2: Convert to fraction form
    8,247.54/11,379.65 = 4,662.57/x
  3. Step 3: Cross multiply
    8,247.54x = 11,379.65 × 4,662.57
  4. Step 4: Simplify right side
    8,247.54x = 53,058,391.39
  5. Step 5: Solve for x
    x = 53,058,391.39/8,247.54
  6. Step 6: Final answer
    x = 6,433.24

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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.