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Finding the Fourth Proportional to 1,659.77, 2,487.99 and 1,067.25

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Solution

The fourth proportional to 1,659.77, 2,487.99 and 1,067.25 is: 1,599.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,659.77 : 2,487.99 = 1,067.25 : x
  2. Step 2: Convert to fraction form
    1,659.77/2,487.99 = 1,067.25/x
  3. Step 3: Cross multiply
    1,659.77x = 2,487.99 × 1,067.25
  4. Step 4: Simplify right side
    1,659.77x = 2,655,307.33
  5. Step 5: Solve for x
    x = 2,655,307.33/1,659.77
  6. Step 6: Final answer
    x = 1,599.80

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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.