Math Problem Statement

En una sucesión aritmética la relación de los términos cuarto y sexto es 11/15 y los terminos primero y octavo suman 72. Calcula el quinto término.

Solution

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Math Problem Analysis

Mathematical Concepts

Arithmetic Sequence
Proportions
System of Linear Equations

Formulas

General term of an arithmetic sequence: a_n = a + (n-1)d
Proportion: (a + 3d)/(a + 5d) = 11/15
Sum formula: a + (a + 7d) = 72

Theorems

Properties of Arithmetic Sequences
Solving Proportions
Solving Linear Equations

Suitable Grade Level

Grades 9-10