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Finding the Third Proportional to 7,116 and 11,367

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Solution

The third proportional to 7,116 and 11,367 is: 18,157.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,116 : 11,367 = 11,367 : x
  2. Step 2: Convert to fraction form
    7,116/11,367 = 11,367/x
  3. Step 3: Cross multiply
    7,116x = 11,367 × 11,367
  4. Step 4: Simplify right side
    7,116x = 129,208,689
  5. Step 5: Solve for x
    x = 129,208,689/7,116
  6. Step 6: Final answer
    x = 18,157.49

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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.