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Finding the Fourth Proportional to 2,720.94, 3,753.79 and 1,776.41

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Solution

The fourth proportional to 2,720.94, 3,753.79 and 1,776.41 is: 2,450.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,720.94 : 3,753.79 = 1,776.41 : x
  2. Step 2: Convert to fraction form
    2,720.94/3,753.79 = 1,776.41/x
  3. Step 3: Cross multiply
    2,720.94x = 3,753.79 × 1,776.41
  4. Step 4: Simplify right side
    2,720.94x = 6,668,270.09
  5. Step 5: Solve for x
    x = 6,668,270.09/2,720.94
  6. Step 6: Final answer
    x = 2,450.72

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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.