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Finding the Fourth Proportional to 69,694.92, 96,172.05 and 39,474.21

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Solution

The fourth proportional to 69,694.92, 96,172.05 and 39,474.21 is: 54,470.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,694.92 : 96,172.05 = 39,474.21 : x
  2. Step 2: Convert to fraction form
    69,694.92/96,172.05 = 39,474.21/x
  3. Step 3: Cross multiply
    69,694.92x = 96,172.05 × 39,474.21
  4. Step 4: Simplify right side
    69,694.92x = 3,796,315,697.83
  5. Step 5: Solve for x
    x = 3,796,315,697.83/69,694.92
  6. Step 6: Final answer
    x = 54,470.48

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1.5x scale

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.