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Finding the Fourth Proportional to 69,879.56, 96,433.32 and 38,048.44

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Solution

The fourth proportional to 69,879.56, 96,433.32 and 38,048.44 is: 52,506.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,879.56 : 96,433.32 = 38,048.44 : x
  2. Step 2: Convert to fraction form
    69,879.56/96,433.32 = 38,048.44/x
  3. Step 3: Cross multiply
    69,879.56x = 96,433.32 × 38,048.44
  4. Step 4: Simplify right side
    69,879.56x = 3,669,137,390.02
  5. Step 5: Solve for x
    x = 3,669,137,390.02/69,879.56
  6. Step 6: Final answer
    x = 52,506.59

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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.