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Finding the Fourth Proportional to 69,462.78, 104,213.61 and 27,938.94

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Solution

The fourth proportional to 69,462.78, 104,213.61 and 27,938.94 is: 41,916.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,462.78 : 104,213.61 = 27,938.94 : x
  2. Step 2: Convert to fraction form
    69,462.78/104,213.61 = 27,938.94/x
  3. Step 3: Cross multiply
    69,462.78x = 104,213.61 × 27,938.94
  4. Step 4: Simplify right side
    69,462.78x = 2,911,617,796.97
  5. Step 5: Solve for x
    x = 2,911,617,796.97/69,462.78
  6. Step 6: Final answer
    x = 41,916.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.