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Finding the Third Proportional to 27,939 and 39,604.50

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Solution

The third proportional to 27,939 and 39,604.50 is: 56,140.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,939 : 39,604.50 = 39,604.50 : x
  2. Step 2: Convert to fraction form
    27,939/39,604.50 = 39,604.50/x
  3. Step 3: Cross multiply
    27,939x = 39,604.50 × 39,604.50
  4. Step 4: Simplify right side
    27,939x = 1,568,516,420.25
  5. Step 5: Solve for x
    x = 1,568,516,420.25/27,939
  6. Step 6: Final answer
    x = 56,140.75

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.