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Finding the Fourth Proportional to 5,305.88, 7,958.81 and 2,997.56

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Solution

The fourth proportional to 5,305.88, 7,958.81 and 2,997.56 is: 4,496.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,305.88 : 7,958.81 = 2,997.56 : x
  2. Step 2: Convert to fraction form
    5,305.88/7,958.81 = 2,997.56/x
  3. Step 3: Cross multiply
    5,305.88x = 7,958.81 × 2,997.56
  4. Step 4: Simplify right side
    5,305.88x = 23,856,978.20
  5. Step 5: Solve for x
    x = 23,856,978.20/5,305.88
  6. Step 6: Final answer
    x = 4,496.33

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.