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Finding the Fourth Proportional to 20,335.98, 30,504 and 5,544.90

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Solution

The fourth proportional to 20,335.98, 30,504 and 5,544.90 is: 8,317.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,335.98 : 30,504 = 5,544.90 : x
  2. Step 2: Convert to fraction form
    20,335.98/30,504 = 5,544.90/x
  3. Step 3: Cross multiply
    20,335.98x = 30,504 × 5,544.90
  4. Step 4: Simplify right side
    20,335.98x = 169,141,629.60
  5. Step 5: Solve for x
    x = 169,141,629.60/20,335.98
  6. Step 6: Final answer
    x = 8,317.36

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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.