In order for seedless watermelons to grow, 1/3 of all of the watermelon plants in a field must be pollinators, and 2/3 of all of the watermelon plants in that field must be fruit-bearing. If a farmer plants 3,111 watermelon plants per acre on a field that covers a total of 26 acres, how many of the plants need to be pollinators?

We can solve this problem step by step using the given information.

### Step 1: Total number of watermelon plants
The farmer plants 3,111 watermelon plants per acre, and the total field covers 26 acres. So, the total number of watermelon plants is calculated as:

\[
\text{Total plants} = 3,111 \, \text{plants/acre} \times 26 \, \text{acres}
\]

\[
\text{Total plants} = 80,886 \, \text{plants}
\]

### Step 2: Proportion of pollinator plants
According to the problem, 1/3 of the total watermelon plants must be pollinators. So, the number of pollinator plants is:

\[
\text{Pollinator plants} = \frac{1}{3} \times \text{Total plants}
\]

\[
\text{Pollinator plants} = \frac{1}{3} \times 80,886
\]

\[
\text{Pollinator plants} = 26,962
\]

Thus, **26,962 plants need to be pollinators**.

Let me know if you'd like more details or have any further questions! Here are some related questions to consider:

1. How many of the plants are fruit-bearing?
2. What percentage of the plants are fruit-bearing versus pollinators?
3. If the farmer increases the planting to 30 acres, how many pollinators are needed?
4. How would the answer change if the ratio of pollinators to fruit-bearing plants changed to 1/4?
5. What would be the effect if the number of plants per acre was reduced to 2,500?

**Tip:** Always double-check your proportions when dealing with parts of a whole.

Learn how to calculate the number of pollinator plants needed when a farmer plants 3,111 watermelon plants per acre on 26 acres of land. This problem covers key concepts like proportions and ratios. Suitable for students in Grades 5-7.

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