It is best if you can change the sample rate of mismatched clips before you edit them into your sequence, as covered in the previous recipe. However, if you weren't able to do that, the solution is given in the following sections.
Please refer to the Getting ready section of the previous Changing the sample rate of clips in a bin before editing them into your sequence recipe.
Create a new bin. This new bin will be the place where you put a duplicate of the sequence you will create in step 2 (which will eventually have the mismatched audio clips converted). Duplicating the sequence and placing it in this bin protects the original and provides an extra back-up version that will not only help you in case you make an error but also will help to keep your project organized for future reference. Label the bin along the lines of My Movie With Sample Rate Converted for Output on [insert date].
Create the...