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Finding the Third Proportional to 12,048 and 18,928

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Solution

The third proportional to 12,048 and 18,928 is: 29,736.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,048 : 18,928 = 18,928 : x
  2. Step 2: Convert to fraction form
    12,048/18,928 = 18,928/x
  3. Step 3: Cross multiply
    12,048x = 18,928 × 18,928
  4. Step 4: Simplify right side
    12,048x = 358,269,184
  5. Step 5: Solve for x
    x = 358,269,184/12,048
  6. Step 6: Final answer
    x = 29,736.82

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.