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Finding the Third Proportional to 3,924.75 and 8,624.06

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Solution

The third proportional to 3,924.75 and 8,624.06 is: 18,950.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,924.75 : 8,624.06 = 8,624.06 : x
  2. Step 2: Convert to fraction form
    3,924.75/8,624.06 = 8,624.06/x
  3. Step 3: Cross multiply
    3,924.75x = 8,624.06 × 8,624.06
  4. Step 4: Simplify right side
    3,924.75x = 74,374,454.00
  5. Step 5: Solve for x
    x = 74,374,454.00/3,924.75
  6. Step 6: Final answer
    x = 18,950.11

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.