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Finding the Fourth Proportional to 6,698.60, 9,241.56 and 3,863.96

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Solution

The fourth proportional to 6,698.60, 9,241.56 and 3,863.96 is: 5,330.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,698.60 : 9,241.56 = 3,863.96 : x
  2. Step 2: Convert to fraction form
    6,698.60/9,241.56 = 3,863.96/x
  3. Step 3: Cross multiply
    6,698.60x = 9,241.56 × 3,863.96
  4. Step 4: Simplify right side
    6,698.60x = 35,709,018.18
  5. Step 5: Solve for x
    x = 35,709,018.18/6,698.60
  6. Step 6: Final answer
    x = 5,330.82

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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.