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Finding the Fourth Proportional to 2,369.74, 3,555.14 and 726.42

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Solution

The fourth proportional to 2,369.74, 3,555.14 and 726.42 is: 1,089.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,369.74 : 3,555.14 = 726.42 : x
  2. Step 2: Convert to fraction form
    2,369.74/3,555.14 = 726.42/x
  3. Step 3: Cross multiply
    2,369.74x = 3,555.14 × 726.42
  4. Step 4: Simplify right side
    2,369.74x = 2,582,524.80
  5. Step 5: Solve for x
    x = 2,582,524.80/2,369.74
  6. Step 6: Final answer
    x = 1,089.79

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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.