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Finding the Third Proportional to 2,649 and 3,784

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Solution

The third proportional to 2,649 and 3,784 is: 5,405.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,649 : 3,784 = 3,784 : x
  2. Step 2: Convert to fraction form
    2,649/3,784 = 3,784/x
  3. Step 3: Cross multiply
    2,649x = 3,784 × 3,784
  4. Step 4: Simplify right side
    2,649x = 14,318,656
  5. Step 5: Solve for x
    x = 14,318,656/2,649
  6. Step 6: Final answer
    x = 5,405.31

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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.