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Finding the Fourth Proportional to 69,273.90, 103,921.74 and 22,515.84

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Solution

The fourth proportional to 69,273.90, 103,921.74 and 22,515.84 is: 33,777.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,273.90 : 103,921.74 = 22,515.84 : x
  2. Step 2: Convert to fraction form
    69,273.90/103,921.74 = 22,515.84/x
  3. Step 3: Cross multiply
    69,273.90x = 103,921.74 × 22,515.84
  4. Step 4: Simplify right side
    69,273.90x = 2,339,885,270.36
  5. Step 5: Solve for x
    x = 2,339,885,270.36/69,273.90
  6. Step 6: Final answer
    x = 33,777.30

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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.