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Finding the Fourth Proportional to 69,108, 95,369.46 and 38,893.83

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Solution

The fourth proportional to 69,108, 95,369.46 and 38,893.83 is: 53,673.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,108 : 95,369.46 = 38,893.83 : x
  2. Step 2: Convert to fraction form
    69,108/95,369.46 = 38,893.83/x
  3. Step 3: Cross multiply
    69,108x = 95,369.46 × 38,893.83
  4. Step 4: Simplify right side
    69,108x = 3,709,283,564.43
  5. Step 5: Solve for x
    x = 3,709,283,564.43/69,108
  6. Step 6: Final answer
    x = 53,673.72

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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.