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Finding the Third Proportional to 8,190 and 11,073

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Solution

The third proportional to 8,190 and 11,073 is: 14,970.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,190 : 11,073 = 11,073 : x
  2. Step 2: Convert to fraction form
    8,190/11,073 = 11,073/x
  3. Step 3: Cross multiply
    8,190x = 11,073 × 11,073
  4. Step 4: Simplify right side
    8,190x = 122,611,329
  5. Step 5: Solve for x
    x = 122,611,329/8,190
  6. Step 6: Final answer
    x = 14,970.86

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.