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Finding the Fourth Proportional to 69,843.99, 96,382.84 and 38,012.20

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Solution

The fourth proportional to 69,843.99, 96,382.84 and 38,012.20 is: 52,455.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,843.99 : 96,382.84 = 38,012.20 : x
  2. Step 2: Convert to fraction form
    69,843.99/96,382.84 = 38,012.20/x
  3. Step 3: Cross multiply
    69,843.99x = 96,382.84 × 38,012.20
  4. Step 4: Simplify right side
    69,843.99x = 3,663,723,790.65
  5. Step 5: Solve for x
    x = 3,663,723,790.65/69,843.99
  6. Step 6: Final answer
    x = 52,455.82

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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.