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Finding the Fourth Proportional to 4,936.66, 7,400.64 and 1,860.82

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Solution

The fourth proportional to 4,936.66, 7,400.64 and 1,860.82 is: 2,789.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,936.66 : 7,400.64 = 1,860.82 : x
  2. Step 2: Convert to fraction form
    4,936.66/7,400.64 = 1,860.82/x
  3. Step 3: Cross multiply
    4,936.66x = 7,400.64 × 1,860.82
  4. Step 4: Simplify right side
    4,936.66x = 13,771,258.92
  5. Step 5: Solve for x
    x = 13,771,258.92/4,936.66
  6. Step 6: Final answer
    x = 2,789.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.