What number has the same estimate when using benchmarks of thousands and ten thousands?

The number that has the same estimate when using benchmarks of thousands and ten thousands is 5,000. When using benchmarks of thousands, 5,000 would round to 5,000. When using benchmarks of ten thousands, 5,000 would also round to 5,000 since it falls between 0 and 10,000. This number remains the same regardless of the benchmark used due to its position relative to the benchmarks.