Place Value Problem: Converting 7 Ten Thousands and 4 Units to Standard Form

To determine the desired number, we will follow these mathematical steps:

• Calculate the contribution of 'seven ten thousands':

$7 \times 10,000 = 70,000$

• Calculate the contribution of 'four units':

$4 \times 1 = 4$

• Combine the two results to find the total number:

$70,000 + 4 = 70,004$

Therefore, the number described in the problem is $70,004$.

According to the multiple-choice options provided, the correct choice is:

$70,004$ (Choice 3).