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Finding the Fourth Proportional to 3,796.77, 5,241.92 and 2,910.87

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Solution

The fourth proportional to 3,796.77, 5,241.92 and 2,910.87 is: 4,018.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,796.77 : 5,241.92 = 2,910.87 : x
  2. Step 2: Convert to fraction form
    3,796.77/5,241.92 = 2,910.87/x
  3. Step 3: Cross multiply
    3,796.77x = 5,241.92 × 2,910.87
  4. Step 4: Simplify right side
    3,796.77x = 15,258,533.12
  5. Step 5: Solve for x
    x = 15,258,533.12/3,796.77
  6. Step 6: Final answer
    x = 4,018.82

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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.