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Finding the Third Proportional to 1,698.66 and 3,761.81

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Solution

The third proportional to 1,698.66 and 3,761.81 is: 8,330.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,698.66 : 3,761.81 = 3,761.81 : x
  2. Step 2: Convert to fraction form
    1,698.66/3,761.81 = 3,761.81/x
  3. Step 3: Cross multiply
    1,698.66x = 3,761.81 × 3,761.81
  4. Step 4: Simplify right side
    1,698.66x = 14,151,233.29
  5. Step 5: Solve for x
    x = 14,151,233.29/1,698.66
  6. Step 6: Final answer
    x = 8,330.84

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.