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Finding the Fourth Proportional to 2,566.84, 3,846.54 and 1,395.85

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Solution

The fourth proportional to 2,566.84, 3,846.54 and 1,395.85 is: 2,091.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,566.84 : 3,846.54 = 1,395.85 : x
  2. Step 2: Convert to fraction form
    2,566.84/3,846.54 = 1,395.85/x
  3. Step 3: Cross multiply
    2,566.84x = 3,846.54 × 1,395.85
  4. Step 4: Simplify right side
    2,566.84x = 5,369,173.63
  5. Step 5: Solve for x
    x = 5,369,173.63/2,566.84
  6. Step 6: Final answer
    x = 2,091.75

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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.