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Finding the Third Proportional to 9,369.50 and 13,911

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Solution

The third proportional to 9,369.50 and 13,911 is: 20,653.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,369.50 : 13,911 = 13,911 : x
  2. Step 2: Convert to fraction form
    9,369.50/13,911 = 13,911/x
  3. Step 3: Cross multiply
    9,369.50x = 13,911 × 13,911
  4. Step 4: Simplify right side
    9,369.50x = 193,515,921
  5. Step 5: Solve for x
    x = 193,515,921/9,369.50
  6. Step 6: Final answer
    x = 20,653.82

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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.