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Finding the Fourth Proportional to 2,694.99, 3,719.84 and 1,648.11

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Solution

The fourth proportional to 2,694.99, 3,719.84 and 1,648.11 is: 2,274.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,694.99 : 3,719.84 = 1,648.11 : x
  2. Step 2: Convert to fraction form
    2,694.99/3,719.84 = 1,648.11/x
  3. Step 3: Cross multiply
    2,694.99x = 3,719.84 × 1,648.11
  4. Step 4: Simplify right side
    2,694.99x = 6,130,697.26
  5. Step 5: Solve for x
    x = 6,130,697.26/2,694.99
  6. Step 6: Final answer
    x = 2,274.85

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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.