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Finding the Third Proportional to 2,438 and 4,768

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Solution

The third proportional to 2,438 and 4,768 is: 9,324.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,438 : 4,768 = 4,768 : x
  2. Step 2: Convert to fraction form
    2,438/4,768 = 4,768/x
  3. Step 3: Cross multiply
    2,438x = 4,768 × 4,768
  4. Step 4: Simplify right side
    2,438x = 22,733,824
  5. Step 5: Solve for x
    x = 22,733,824/2,438
  6. Step 6: Final answer
    x = 9,324.78

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Why These Related Problems?

These problems maintain the same ratio (1.96) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.