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Finding the Fourth Proportional to 69,847.72, 104,773.21 and 19,932.28

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Solution

The fourth proportional to 69,847.72, 104,773.21 and 19,932.28 is: 29,898.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,847.72 : 104,773.21 = 19,932.28 : x
  2. Step 2: Convert to fraction form
    69,847.72/104,773.21 = 19,932.28/x
  3. Step 3: Cross multiply
    69,847.72x = 104,773.21 × 19,932.28
  4. Step 4: Simplify right side
    69,847.72x = 2,088,368,958.22
  5. Step 5: Solve for x
    x = 2,088,368,958.22/69,847.72
  6. Step 6: Final answer
    x = 29,898.89

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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.