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Finding the Fourth Proportional to 69,976.84, 96,563.20 and 39,354.52

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Solution

The fourth proportional to 69,976.84, 96,563.20 and 39,354.52 is: 54,306.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,976.84 : 96,563.20 = 39,354.52 : x
  2. Step 2: Convert to fraction form
    69,976.84/96,563.20 = 39,354.52/x
  3. Step 3: Cross multiply
    69,976.84x = 96,563.20 × 39,354.52
  4. Step 4: Simplify right side
    69,976.84x = 3,800,198,188.89
  5. Step 5: Solve for x
    x = 3,800,198,188.89/69,976.84
  6. Step 6: Final answer
    x = 54,306.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.