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Finding the Third Proportional to 36,243 and 51,039

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Solution

The third proportional to 36,243 and 51,039 is: 71,875.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,243 : 51,039 = 51,039 : x
  2. Step 2: Convert to fraction form
    36,243/51,039 = 51,039/x
  3. Step 3: Cross multiply
    36,243x = 51,039 × 51,039
  4. Step 4: Simplify right side
    36,243x = 2,604,979,521
  5. Step 5: Solve for x
    x = 2,604,979,521/36,243
  6. Step 6: Final answer
    x = 71,875.38

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.