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Finding the Third Proportional to 715.88 and 1,715.44

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Solution

The third proportional to 715.88 and 1,715.44 is: 4,110.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    715.88 : 1,715.44 = 1,715.44 : x
  2. Step 2: Convert to fraction form
    715.88/1,715.44 = 1,715.44/x
  3. Step 3: Cross multiply
    715.88x = 1,715.44 × 1,715.44
  4. Step 4: Simplify right side
    715.88x = 2,942,725.82
  5. Step 5: Solve for x
    x = 2,942,725.82/715.88
  6. Step 6: Final answer
    x = 4,110.67

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Why These Related Problems?

These problems maintain the same ratio (2.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.