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Finding the Third Proportional to 9,381 and 11,893.50

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Solution

The third proportional to 9,381 and 11,893.50 is: 15,078.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,381 : 11,893.50 = 11,893.50 : x
  2. Step 2: Convert to fraction form
    9,381/11,893.50 = 11,893.50/x
  3. Step 3: Cross multiply
    9,381x = 11,893.50 × 11,893.50
  4. Step 4: Simplify right side
    9,381x = 141,455,342.25
  5. Step 5: Solve for x
    x = 141,455,342.25/9,381
  6. Step 6: Final answer
    x = 15,078.92

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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.