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Finding the Fourth Proportional to 69,006.91, 95,218.86 and 38,786.62

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Solution

The fourth proportional to 69,006.91, 95,218.86 and 38,786.62 is: 53,519.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,006.91 : 95,218.86 = 38,786.62 : x
  2. Step 2: Convert to fraction form
    69,006.91/95,218.86 = 38,786.62/x
  3. Step 3: Cross multiply
    69,006.91x = 95,218.86 × 38,786.62
  4. Step 4: Simplify right side
    69,006.91x = 3,693,217,739.65
  5. Step 5: Solve for x
    x = 3,693,217,739.65/69,006.91
  6. Step 6: Final answer
    x = 53,519.54

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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.