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Finding the Fourth Proportional to 2,720.91, 3,754.94 and 1,541.94

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Solution

The fourth proportional to 2,720.91, 3,754.94 and 1,541.94 is: 2,127.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,720.91 : 3,754.94 = 1,541.94 : x
  2. Step 2: Convert to fraction form
    2,720.91/3,754.94 = 1,541.94/x
  3. Step 3: Cross multiply
    2,720.91x = 3,754.94 × 1,541.94
  4. Step 4: Simplify right side
    2,720.91x = 5,789,884.47
  5. Step 5: Solve for x
    x = 5,789,884.47/2,720.91
  6. Step 6: Final answer
    x = 2,127.92

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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.