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Finding the Third Proportional to 56,290 and 79,162

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Solution

The third proportional to 56,290 and 79,162 is: 111,327.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,290 : 79,162 = 79,162 : x
  2. Step 2: Convert to fraction form
    56,290/79,162 = 79,162/x
  3. Step 3: Cross multiply
    56,290x = 79,162 × 79,162
  4. Step 4: Simplify right side
    56,290x = 6,266,622,244
  5. Step 5: Solve for x
    x = 6,266,622,244/56,290
  6. Step 6: Final answer
    x = 111,327.45

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.