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Finding the Fourth Proportional to 39,954.72, 59,930.64 and 12,252

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Solution

The fourth proportional to 39,954.72, 59,930.64 and 12,252 is: 18,377.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,954.72 : 59,930.64 = 12,252 : x
  2. Step 2: Convert to fraction form
    39,954.72/59,930.64 = 12,252/x
  3. Step 3: Cross multiply
    39,954.72x = 59,930.64 × 12,252
  4. Step 4: Simplify right side
    39,954.72x = 734,270,201.28
  5. Step 5: Solve for x
    x = 734,270,201.28/39,954.72
  6. Step 6: Final answer
    x = 18,377.56

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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.