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Finding the Fourth Proportional to 13,361.69, 20,043.86 and 5,048.69

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Solution

The fourth proportional to 13,361.69, 20,043.86 and 5,048.69 is: 7,573.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,361.69 : 20,043.86 = 5,048.69 : x
  2. Step 2: Convert to fraction form
    13,361.69/20,043.86 = 5,048.69/x
  3. Step 3: Cross multiply
    13,361.69x = 20,043.86 × 5,048.69
  4. Step 4: Simplify right side
    13,361.69x = 101,195,110.08
  5. Step 5: Solve for x
    x = 101,195,110.08/13,361.69
  6. Step 6: Final answer
    x = 7,573.52

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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.