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Finding the Fourth Proportional to 3,168.63, 4,751.76 and 1,268.37

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Solution

The fourth proportional to 3,168.63, 4,751.76 and 1,268.37 is: 1,902.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,168.63 : 4,751.76 = 1,268.37 : x
  2. Step 2: Convert to fraction form
    3,168.63/4,751.76 = 1,268.37/x
  3. Step 3: Cross multiply
    3,168.63x = 4,751.76 × 1,268.37
  4. Step 4: Simplify right side
    3,168.63x = 6,026,989.83
  5. Step 5: Solve for x
    x = 6,026,989.83/3,168.63
  6. Step 6: Final answer
    x = 1,902.08

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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.