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Finding the Fourth Proportional to 69,821.69, 96,355.66 and 37,992.34

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Solution

The fourth proportional to 69,821.69, 96,355.66 and 37,992.34 is: 52,430.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,821.69 : 96,355.66 = 37,992.34 : x
  2. Step 2: Convert to fraction form
    69,821.69/96,355.66 = 37,992.34/x
  3. Step 3: Cross multiply
    69,821.69x = 96,355.66 × 37,992.34
  4. Step 4: Simplify right side
    69,821.69x = 3,660,776,513.87
  5. Step 5: Solve for x
    x = 3,660,776,513.87/69,821.69
  6. Step 6: Final answer
    x = 52,430.36

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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.