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Finding the Third Proportional to 52,686 and 74,106

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Solution

The third proportional to 52,686 and 74,106 is: 104,234.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,686 : 74,106 = 74,106 : x
  2. Step 2: Convert to fraction form
    52,686/74,106 = 74,106/x
  3. Step 3: Cross multiply
    52,686x = 74,106 × 74,106
  4. Step 4: Simplify right side
    52,686x = 5,491,699,236
  5. Step 5: Solve for x
    x = 5,491,699,236/52,686
  6. Step 6: Final answer
    x = 104,234.51

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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.