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Finding the Third Proportional to 7,738 and 15,674

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Solution

The third proportional to 7,738 and 15,674 is: 31,749.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,738 : 15,674 = 15,674 : x
  2. Step 2: Convert to fraction form
    7,738/15,674 = 15,674/x
  3. Step 3: Cross multiply
    7,738x = 15,674 × 15,674
  4. Step 4: Simplify right side
    7,738x = 245,674,276
  5. Step 5: Solve for x
    x = 245,674,276/7,738
  6. Step 6: Final answer
    x = 31,749.07

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.