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Finding the Fourth Proportional to 3,474.53, 5,212.77 and 1,395.99

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Solution

The fourth proportional to 3,474.53, 5,212.77 and 1,395.99 is: 2,094.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,474.53 : 5,212.77 = 1,395.99 : x
  2. Step 2: Convert to fraction form
    3,474.53/5,212.77 = 1,395.99/x
  3. Step 3: Cross multiply
    3,474.53x = 5,212.77 × 1,395.99
  4. Step 4: Simplify right side
    3,474.53x = 7,276,994.34
  5. Step 5: Solve for x
    x = 7,276,994.34/3,474.53
  6. Step 6: Final answer
    x = 2,094.38

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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.