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Finding the Third Proportional to 3,992 and 8,526.50

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Solution

The third proportional to 3,992 and 8,526.50 is: 18,211.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,992 : 8,526.50 = 8,526.50 : x
  2. Step 2: Convert to fraction form
    3,992/8,526.50 = 8,526.50/x
  3. Step 3: Cross multiply
    3,992x = 8,526.50 × 8,526.50
  4. Step 4: Simplify right side
    3,992x = 72,701,202.25
  5. Step 5: Solve for x
    x = 72,701,202.25/3,992
  6. Step 6: Final answer
    x = 18,211.72

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.