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Finding the Third Proportional to 7,668 and 11,356.88

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Solution

The third proportional to 7,668 and 11,356.88 is: 16,820.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,668 : 11,356.88 = 11,356.88 : x
  2. Step 2: Convert to fraction form
    7,668/11,356.88 = 11,356.88/x
  3. Step 3: Cross multiply
    7,668x = 11,356.88 × 11,356.88
  4. Step 4: Simplify right side
    7,668x = 128,978,609.77
  5. Step 5: Solve for x
    x = 128,978,609.77/7,668
  6. Step 6: Final answer
    x = 16,820.37

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.