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Finding the Fourth Proportional to 69,879.65, 96,434.08 and 38,048.54

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Solution

The fourth proportional to 69,879.65, 96,434.08 and 38,048.54 is: 52,507.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,879.65 : 96,434.08 = 38,048.54 : x
  2. Step 2: Convert to fraction form
    69,879.65/96,434.08 = 38,048.54/x
  3. Step 3: Cross multiply
    69,879.65x = 96,434.08 × 38,048.54
  4. Step 4: Simplify right side
    69,879.65x = 3,669,175,372.95
  5. Step 5: Solve for x
    x = 3,669,175,372.95/69,879.65
  6. Step 6: Final answer
    x = 52,507.07

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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.