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Finding the Third Proportional to 5,186 and 9,039

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Solution

The third proportional to 5,186 and 9,039 is: 15,754.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,186 : 9,039 = 9,039 : x
  2. Step 2: Convert to fraction form
    5,186/9,039 = 9,039/x
  3. Step 3: Cross multiply
    5,186x = 9,039 × 9,039
  4. Step 4: Simplify right side
    5,186x = 81,703,521
  5. Step 5: Solve for x
    x = 81,703,521/5,186
  6. Step 6: Final answer
    x = 15,754.63

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Why These Related Problems?

These problems maintain the same ratio (1.74) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.