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Finding the Third Proportional to 5,319 and 9,975

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Solution

The third proportional to 5,319 and 9,975 is: 18,706.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,319 : 9,975 = 9,975 : x
  2. Step 2: Convert to fraction form
    5,319/9,975 = 9,975/x
  3. Step 3: Cross multiply
    5,319x = 9,975 × 9,975
  4. Step 4: Simplify right side
    5,319x = 99,500,625
  5. Step 5: Solve for x
    x = 99,500,625/5,319
  6. Step 6: Final answer
    x = 18,706.64

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These problems maintain the same ratio (1.88) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.