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Finding the Fourth Proportional to 2,721.94, 3,756.27 and 1,479.94

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Solution

The fourth proportional to 2,721.94, 3,756.27 and 1,479.94 is: 2,042.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,721.94 : 3,756.27 = 1,479.94 : x
  2. Step 2: Convert to fraction form
    2,721.94/3,756.27 = 1,479.94/x
  3. Step 3: Cross multiply
    2,721.94x = 3,756.27 × 1,479.94
  4. Step 4: Simplify right side
    2,721.94x = 5,559,050.38
  5. Step 5: Solve for x
    x = 5,559,050.38/2,721.94
  6. Step 6: Final answer
    x = 2,042.31

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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.