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Finding the Fourth Proportional to 3,395.93, 5,095.41 and 1,639.95

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Solution

The fourth proportional to 3,395.93, 5,095.41 and 1,639.95 is: 2,460.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,395.93 : 5,095.41 = 1,639.95 : x
  2. Step 2: Convert to fraction form
    3,395.93/5,095.41 = 1,639.95/x
  3. Step 3: Cross multiply
    3,395.93x = 5,095.41 × 1,639.95
  4. Step 4: Simplify right side
    3,395.93x = 8,356,192.37
  5. Step 5: Solve for x
    x = 8,356,192.37/3,395.93
  6. Step 6: Final answer
    x = 2,460.65

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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.