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Finding the Third Proportional to 6,648 and 14,388

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Solution

The third proportional to 6,648 and 14,388 is: 31,139.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,648 : 14,388 = 14,388 : x
  2. Step 2: Convert to fraction form
    6,648/14,388 = 14,388/x
  3. Step 3: Cross multiply
    6,648x = 14,388 × 14,388
  4. Step 4: Simplify right side
    6,648x = 207,014,544
  5. Step 5: Solve for x
    x = 207,014,544/6,648
  6. Step 6: Final answer
    x = 31,139.37

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.