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Finding the Fourth Proportional to 8,163.16, 11,267.70 and 4,805.71

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Solution

The fourth proportional to 8,163.16, 11,267.70 and 4,805.71 is: 6,633.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,163.16 : 11,267.70 = 4,805.71 : x
  2. Step 2: Convert to fraction form
    8,163.16/11,267.70 = 4,805.71/x
  3. Step 3: Cross multiply
    8,163.16x = 11,267.70 × 4,805.71
  4. Step 4: Simplify right side
    8,163.16x = 54,149,298.57
  5. Step 5: Solve for x
    x = 54,149,298.57/8,163.16
  6. Step 6: Final answer
    x = 6,633.37

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Half scale
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Double 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.