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Finding the Fourth Proportional to 6,649.18, 9,954.44 and 3,867.36

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Solution

The fourth proportional to 6,649.18, 9,954.44 and 3,867.36 is: 5,789.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,649.18 : 9,954.44 = 3,867.36 : x
  2. Step 2: Convert to fraction form
    6,649.18/9,954.44 = 3,867.36/x
  3. Step 3: Cross multiply
    6,649.18x = 9,954.44 × 3,867.36
  4. Step 4: Simplify right side
    6,649.18x = 38,497,403.08
  5. Step 5: Solve for x
    x = 38,497,403.08/6,649.18
  6. Step 6: Final answer
    x = 5,789.80

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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.