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Finding the Third Proportional to 957 and 1,071

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Solution

The third proportional to 957 and 1,071 is: 1,198.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    957 : 1,071 = 1,071 : x
  2. Step 2: Convert to fraction form
    957/1,071 = 1,071/x
  3. Step 3: Cross multiply
    957x = 1,071 × 1,071
  4. Step 4: Simplify right side
    957x = 1,147,041
  5. Step 5: Solve for x
    x = 1,147,041/957
  6. Step 6: Final answer
    x = 1,198.58

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Why These Related Problems?

These problems maintain the same ratio (1.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.