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Finding the Third Proportional to 7,518 and 11,973

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Solution

The third proportional to 7,518 and 11,973 is: 19,067.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,518 : 11,973 = 11,973 : x
  2. Step 2: Convert to fraction form
    7,518/11,973 = 11,973/x
  3. Step 3: Cross multiply
    7,518x = 11,973 × 11,973
  4. Step 4: Simplify right side
    7,518x = 143,352,729
  5. Step 5: Solve for x
    x = 143,352,729/7,518
  6. Step 6: Final answer
    x = 19,067.93

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.