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Finding the Third Proportional to 3,817.50 and 7,167

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Solution

The third proportional to 3,817.50 and 7,167 is: 13,455.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,817.50 : 7,167 = 7,167 : x
  2. Step 2: Convert to fraction form
    3,817.50/7,167 = 7,167/x
  3. Step 3: Cross multiply
    3,817.50x = 7,167 × 7,167
  4. Step 4: Simplify right side
    3,817.50x = 51,365,889
  5. Step 5: Solve for x
    x = 51,365,889/3,817.50
  6. Step 6: Final answer
    x = 13,455.37

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Why These Related Problems?

These problems maintain the same ratio (1.88) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.