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Finding the Fourth Proportional to 69,710.65, 96,201.31 and 37,879.55

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Solution

The fourth proportional to 69,710.65, 96,201.31 and 37,879.55 is: 52,274.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,710.65 : 96,201.31 = 37,879.55 : x
  2. Step 2: Convert to fraction form
    69,710.65/96,201.31 = 37,879.55/x
  3. Step 3: Cross multiply
    69,710.65x = 96,201.31 × 37,879.55
  4. Step 4: Simplify right side
    69,710.65x = 3,644,062,142.81
  5. Step 5: Solve for x
    x = 3,644,062,142.81/69,710.65
  6. Step 6: Final answer
    x = 52,274.11

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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.