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Finding the Fourth Proportional to 69,262.53, 103,909.83 and 21,882.30

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Solution

The fourth proportional to 69,262.53, 103,909.83 and 21,882.30 is: 32,828.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,262.53 : 103,909.83 = 21,882.30 : x
  2. Step 2: Convert to fraction form
    69,262.53/103,909.83 = 21,882.30/x
  3. Step 3: Cross multiply
    69,262.53x = 103,909.83 × 21,882.30
  4. Step 4: Simplify right side
    69,262.53x = 2,273,786,073.01
  5. Step 5: Solve for x
    x = 2,273,786,073.01/69,262.53
  6. Step 6: Final answer
    x = 32,828.52

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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.