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Finding the Fourth Proportional to 8,241.53, 11,366.70 and 7,244.69

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Solution

The fourth proportional to 8,241.53, 11,366.70 and 7,244.69 is: 9,991.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,241.53 : 11,366.70 = 7,244.69 : x
  2. Step 2: Convert to fraction form
    8,241.53/11,366.70 = 7,244.69/x
  3. Step 3: Cross multiply
    8,241.53x = 11,366.70 × 7,244.69
  4. Step 4: Simplify right side
    8,241.53x = 82,348,217.82
  5. Step 5: Solve for x
    x = 82,348,217.82/8,241.53
  6. Step 6: Final answer
    x = 9,991.86

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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.