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Finding the Third Proportional to 3,690.56 and 4,999.22

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Solution

The third proportional to 3,690.56 and 4,999.22 is: 6,771.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,690.56 : 4,999.22 = 4,999.22 : x
  2. Step 2: Convert to fraction form
    3,690.56/4,999.22 = 4,999.22/x
  3. Step 3: Cross multiply
    3,690.56x = 4,999.22 × 4,999.22
  4. Step 4: Simplify right side
    3,690.56x = 24,992,188.11
  5. Step 5: Solve for x
    x = 24,992,188.11/3,690.56
  6. Step 6: Final answer
    x = 6,771.92

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.