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Finding the Third Proportional to 7,824 and 16,176

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Solution

The third proportional to 7,824 and 16,176 is: 33,443.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,824 : 16,176 = 16,176 : x
  2. Step 2: Convert to fraction form
    7,824/16,176 = 16,176/x
  3. Step 3: Cross multiply
    7,824x = 16,176 × 16,176
  4. Step 4: Simplify right side
    7,824x = 261,662,976
  5. Step 5: Solve for x
    x = 261,662,976/7,824
  6. Step 6: Final answer
    x = 33,443.63

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.