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Finding the Third Proportional to 8,378 and 17,618

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Solution

The third proportional to 8,378 and 17,618 is: 37,048.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,378 : 17,618 = 17,618 : x
  2. Step 2: Convert to fraction form
    8,378/17,618 = 17,618/x
  3. Step 3: Cross multiply
    8,378x = 17,618 × 17,618
  4. Step 4: Simplify right side
    8,378x = 310,393,924
  5. Step 5: Solve for x
    x = 310,393,924/8,378
  6. Step 6: Final answer
    x = 37,048.69

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.