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Finding the Fourth Proportional to 69,698.25, 96,188.34 and 39,483.82

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Solution

The fourth proportional to 69,698.25, 96,188.34 and 39,483.82 is: 54,490.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,698.25 : 96,188.34 = 39,483.82 : x
  2. Step 2: Convert to fraction form
    69,698.25/96,188.34 = 39,483.82/x
  3. Step 3: Cross multiply
    69,698.25x = 96,188.34 × 39,483.82
  4. Step 4: Simplify right side
    69,698.25x = 3,797,883,010.25
  5. Step 5: Solve for x
    x = 3,797,883,010.25/69,698.25
  6. Step 6: Final answer
    x = 54,490.37

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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.