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Finding the Fourth Proportional to 2,700.44, 3,726.74 and 1,521.64

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Solution

The fourth proportional to 2,700.44, 3,726.74 and 1,521.64 is: 2,099.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,700.44 : 3,726.74 = 1,521.64 : x
  2. Step 2: Convert to fraction form
    2,700.44/3,726.74 = 1,521.64/x
  3. Step 3: Cross multiply
    2,700.44x = 3,726.74 × 1,521.64
  4. Step 4: Simplify right side
    2,700.44x = 5,670,756.65
  5. Step 5: Solve for x
    x = 5,670,756.65/2,700.44
  6. Step 6: Final answer
    x = 2,099.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.