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Finding the Third Proportional to 38,880 and 84,888

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Solution

The third proportional to 38,880 and 84,888 is: 185,338.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,880 : 84,888 = 84,888 : x
  2. Step 2: Convert to fraction form
    38,880/84,888 = 84,888/x
  3. Step 3: Cross multiply
    38,880x = 84,888 × 84,888
  4. Step 4: Simplify right side
    38,880x = 7,205,972,544
  5. Step 5: Solve for x
    x = 7,205,972,544/38,880
  6. Step 6: Final answer
    x = 185,338.80

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.