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Finding the Fourth Proportional to 6,648.20, 9,973.93 and 3,361.22

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Solution

The fourth proportional to 6,648.20, 9,973.93 and 3,361.22 is: 5,042.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,648.20 : 9,973.93 = 3,361.22 : x
  2. Step 2: Convert to fraction form
    6,648.20/9,973.93 = 3,361.22/x
  3. Step 3: Cross multiply
    6,648.20x = 9,973.93 × 3,361.22
  4. Step 4: Simplify right side
    6,648.20x = 33,524,572.99
  5. Step 5: Solve for x
    x = 33,524,572.99/6,648.20
  6. Step 6: Final answer
    x = 5,042.65

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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.