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Finding the Fourth Proportional to 69,686.69, 96,174.05 and 39,473.28

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Solution

The fourth proportional to 69,686.69, 96,174.05 and 39,473.28 is: 54,476.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,686.69 : 96,174.05 = 39,473.28 : x
  2. Step 2: Convert to fraction form
    69,686.69/96,174.05 = 39,473.28/x
  3. Step 3: Cross multiply
    69,686.69x = 96,174.05 × 39,473.28
  4. Step 4: Simplify right side
    69,686.69x = 3,796,305,007.02
  5. Step 5: Solve for x
    x = 3,796,305,007.02/69,686.69
  6. Step 6: Final answer
    x = 54,476.76

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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.