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Finding the Third Proportional to 11,391 and 14,254.50

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Solution

The third proportional to 11,391 and 14,254.50 is: 17,837.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,391 : 14,254.50 = 14,254.50 : x
  2. Step 2: Convert to fraction form
    11,391/14,254.50 = 14,254.50/x
  3. Step 3: Cross multiply
    11,391x = 14,254.50 × 14,254.50
  4. Step 4: Simplify right side
    11,391x = 203,190,770.25
  5. Step 5: Solve for x
    x = 203,190,770.25/11,391
  6. Step 6: Final answer
    x = 17,837.83

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Why These Related Problems?

These problems maintain the same ratio (1.25) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.