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Finding the Third Proportional to 3,249.70 and 4,643.81

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Solution

The third proportional to 3,249.70 and 4,643.81 is: 6,635.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,249.70 : 4,643.81 = 4,643.81 : x
  2. Step 2: Convert to fraction form
    3,249.70/4,643.81 = 4,643.81/x
  3. Step 3: Cross multiply
    3,249.70x = 4,643.81 × 4,643.81
  4. Step 4: Simplify right side
    3,249.70x = 21,564,994.54
  5. Step 5: Solve for x
    x = 21,564,994.54/3,249.70
  6. Step 6: Final answer
    x = 6,635.99

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.