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Finding the Third Proportional to 7,213.50 and 7,968

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Solution

The third proportional to 7,213.50 and 7,968 is: 8,801.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,213.50 : 7,968 = 7,968 : x
  2. Step 2: Convert to fraction form
    7,213.50/7,968 = 7,968/x
  3. Step 3: Cross multiply
    7,213.50x = 7,968 × 7,968
  4. Step 4: Simplify right side
    7,213.50x = 63,489,024
  5. Step 5: Solve for x
    x = 63,489,024/7,213.50
  6. Step 6: Final answer
    x = 8,801.42

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Why These Related Problems?

These problems maintain the same ratio (1.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.