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Finding the Third Proportional to 5,872.50 and 6,912

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Solution

The third proportional to 5,872.50 and 6,912 is: 8,135.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,872.50 : 6,912 = 6,912 : x
  2. Step 2: Convert to fraction form
    5,872.50/6,912 = 6,912/x
  3. Step 3: Cross multiply
    5,872.50x = 6,912 × 6,912
  4. Step 4: Simplify right side
    5,872.50x = 47,775,744
  5. Step 5: Solve for x
    x = 47,775,744/5,872.50
  6. Step 6: Final answer
    x = 8,135.50

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Why These Related Problems?

These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.