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Finding the Third Proportional to 25,090 and 36,811

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Solution

The third proportional to 25,090 and 36,811 is: 54,007.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,090 : 36,811 = 36,811 : x
  2. Step 2: Convert to fraction form
    25,090/36,811 = 36,811/x
  3. Step 3: Cross multiply
    25,090x = 36,811 × 36,811
  4. Step 4: Simplify right side
    25,090x = 1,355,049,721
  5. Step 5: Solve for x
    x = 1,355,049,721/25,090
  6. Step 6: Final answer
    x = 54,007.56

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.