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Finding the Fourth Proportional to 8,150.40, 11,247.24 and 4,424.40

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Solution

The fourth proportional to 8,150.40, 11,247.24 and 4,424.40 is: 6,105.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,150.40 : 11,247.24 = 4,424.40 : x
  2. Step 2: Convert to fraction form
    8,150.40/11,247.24 = 4,424.40/x
  3. Step 3: Cross multiply
    8,150.40x = 11,247.24 × 4,424.40
  4. Step 4: Simplify right side
    8,150.40x = 49,762,288.66
  5. Step 5: Solve for x
    x = 49,762,288.66/8,150.40
  6. Step 6: Final answer
    x = 6,105.50

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Half scale
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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.