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Finding the Fourth Proportional to 1,924.98, 2,891.13 and 1,199.64

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Solution

The fourth proportional to 1,924.98, 2,891.13 and 1,199.64 is: 1,801.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,924.98 : 2,891.13 = 1,199.64 : x
  2. Step 2: Convert to fraction form
    1,924.98/2,891.13 = 1,199.64/x
  3. Step 3: Cross multiply
    1,924.98x = 2,891.13 × 1,199.64
  4. Step 4: Simplify right side
    1,924.98x = 3,468,315.19
  5. Step 5: Solve for x
    x = 3,468,315.19/1,924.98
  6. Step 6: Final answer
    x = 1,801.74

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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.