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Finding the Fourth Proportional to 5,168.63, 7,751.75 and 1,470.77

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Solution

The fourth proportional to 5,168.63, 7,751.75 and 1,470.77 is: 2,205.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,168.63 : 7,751.75 = 1,470.77 : x
  2. Step 2: Convert to fraction form
    5,168.63/7,751.75 = 1,470.77/x
  3. Step 3: Cross multiply
    5,168.63x = 7,751.75 × 1,470.77
  4. Step 4: Simplify right side
    5,168.63x = 11,400,995.23
  5. Step 5: Solve for x
    x = 11,400,995.23/5,168.63
  6. Step 6: Final answer
    x = 2,205.81

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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.