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Finding the Third Proportional to 51,888 and 79,356

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Solution

The third proportional to 51,888 and 79,356 is: 121,364.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,888 : 79,356 = 79,356 : x
  2. Step 2: Convert to fraction form
    51,888/79,356 = 79,356/x
  3. Step 3: Cross multiply
    51,888x = 79,356 × 79,356
  4. Step 4: Simplify right side
    51,888x = 6,297,374,736
  5. Step 5: Solve for x
    x = 6,297,374,736/51,888
  6. Step 6: Final answer
    x = 121,364.76

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.