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Finding the Fourth Proportional to 69,879.27, 96,435.12 and 38,049.91

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Solution

The fourth proportional to 69,879.27, 96,435.12 and 38,049.91 is: 52,509.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,879.27 : 96,435.12 = 38,049.91 : x
  2. Step 2: Convert to fraction form
    69,879.27/96,435.12 = 38,049.91/x
  3. Step 3: Cross multiply
    69,879.27x = 96,435.12 × 38,049.91
  4. Step 4: Simplify right side
    69,879.27x = 3,669,347,636.84
  5. Step 5: Solve for x
    x = 3,669,347,636.84/69,879.27
  6. Step 6: Final answer
    x = 52,509.82

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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.