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Finding the Fourth Proportional to 1,798.62, 2,698.74 and 1,067.76

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Solution

The fourth proportional to 1,798.62, 2,698.74 and 1,067.76 is: 1,602.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,798.62 : 2,698.74 = 1,067.76 : x
  2. Step 2: Convert to fraction form
    1,798.62/2,698.74 = 1,067.76/x
  3. Step 3: Cross multiply
    1,798.62x = 2,698.74 × 1,067.76
  4. Step 4: Simplify right side
    1,798.62x = 2,881,606.62
  5. Step 5: Solve for x
    x = 2,881,606.62/1,798.62
  6. Step 6: Final answer
    x = 1,602.12

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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.