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Finding the Third Proportional to 958.78 and 1,036.41

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Solution

The third proportional to 958.78 and 1,036.41 is: 1,120.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    958.78 : 1,036.41 = 1,036.41 : x
  2. Step 2: Convert to fraction form
    958.78/1,036.41 = 1,036.41/x
  3. Step 3: Cross multiply
    958.78x = 1,036.41 × 1,036.41
  4. Step 4: Simplify right side
    958.78x = 1,074,137.92
  5. Step 5: Solve for x
    x = 1,074,137.92/958.78
  6. Step 6: Final answer
    x = 1,120.32

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Why These Related Problems?

These problems maintain the same ratio (1.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.