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Finding the Third Proportional to 1,386.81 and 2,964.41

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Solution

The third proportional to 1,386.81 and 2,964.41 is: 6,336.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386.81 : 2,964.41 = 2,964.41 : x
  2. Step 2: Convert to fraction form
    1,386.81/2,964.41 = 2,964.41/x
  3. Step 3: Cross multiply
    1,386.81x = 2,964.41 × 2,964.41
  4. Step 4: Simplify right side
    1,386.81x = 8,787,727.57
  5. Step 5: Solve for x
    x = 8,787,727.57/1,386.81
  6. Step 6: Final answer
    x = 6,336.65

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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.