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Finding the Third Proportional to 9,393 and 11,917.50

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Solution

The third proportional to 9,393 and 11,917.50 is: 15,120.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,393 : 11,917.50 = 11,917.50 : x
  2. Step 2: Convert to fraction form
    9,393/11,917.50 = 11,917.50/x
  3. Step 3: Cross multiply
    9,393x = 11,917.50 × 11,917.50
  4. Step 4: Simplify right side
    9,393x = 142,026,806.25
  5. Step 5: Solve for x
    x = 142,026,806.25/9,393
  6. Step 6: Final answer
    x = 15,120.49

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Why These Related Problems?

These problems maintain the same ratio (1.27) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.