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Finding the Fourth Proportional to 7,244.62, 9,997.81 and 4,100.74

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Solution

The fourth proportional to 7,244.62, 9,997.81 and 4,100.74 is: 5,659.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,244.62 : 9,997.81 = 4,100.74 : x
  2. Step 2: Convert to fraction form
    7,244.62/9,997.81 = 4,100.74/x
  3. Step 3: Cross multiply
    7,244.62x = 9,997.81 × 4,100.74
  4. Step 4: Simplify right side
    7,244.62x = 40,998,419.38
  5. Step 5: Solve for x
    x = 40,998,419.38/7,244.62
  6. Step 6: Final answer
    x = 5,659.15

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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.