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Finding the Third Proportional to 7,727 and 16,618

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Solution

The third proportional to 7,727 and 16,618 is: 35,739.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,727 : 16,618 = 16,618 : x
  2. Step 2: Convert to fraction form
    7,727/16,618 = 16,618/x
  3. Step 3: Cross multiply
    7,727x = 16,618 × 16,618
  4. Step 4: Simplify right side
    7,727x = 276,157,924
  5. Step 5: Solve for x
    x = 276,157,924/7,727
  6. Step 6: Final answer
    x = 35,739.35

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.