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Finding the Third Proportional to 7,910 and 17,399

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Solution

The third proportional to 7,910 and 17,399 is: 38,271.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,910 : 17,399 = 17,399 : x
  2. Step 2: Convert to fraction form
    7,910/17,399 = 17,399/x
  3. Step 3: Cross multiply
    7,910x = 17,399 × 17,399
  4. Step 4: Simplify right side
    7,910x = 302,725,201
  5. Step 5: Solve for x
    x = 302,725,201/7,910
  6. Step 6: Final answer
    x = 38,271.20

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.