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Finding the Third Proportional to 27,076.50 and 40,390

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Solution

The third proportional to 27,076.50 and 40,390 is: 60,249.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,076.50 : 40,390 = 40,390 : x
  2. Step 2: Convert to fraction form
    27,076.50/40,390 = 40,390/x
  3. Step 3: Cross multiply
    27,076.50x = 40,390 × 40,390
  4. Step 4: Simplify right side
    27,076.50x = 1,631,352,100
  5. Step 5: Solve for x
    x = 1,631,352,100/27,076.50
  6. Step 6: Final answer
    x = 60,249.74

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.