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Finding the Third Proportional to 7,167 and 11,461.50

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Solution

The third proportional to 7,167 and 11,461.50 is: 18,329.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,167 : 11,461.50 = 11,461.50 : x
  2. Step 2: Convert to fraction form
    7,167/11,461.50 = 11,461.50/x
  3. Step 3: Cross multiply
    7,167x = 11,461.50 × 11,461.50
  4. Step 4: Simplify right side
    7,167x = 131,365,982.25
  5. Step 5: Solve for x
    x = 131,365,982.25/7,167
  6. Step 6: Final answer
    x = 18,329.28

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.