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Finding the Fourth Proportional to 3,168.04, 4,751.98 and 859.48

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Solution

The fourth proportional to 3,168.04, 4,751.98 and 859.48 is: 1,289.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,168.04 : 4,751.98 = 859.48 : x
  2. Step 2: Convert to fraction form
    3,168.04/4,751.98 = 859.48/x
  3. Step 3: Cross multiply
    3,168.04x = 4,751.98 × 859.48
  4. Step 4: Simplify right side
    3,168.04x = 4,084,231.77
  5. Step 5: Solve for x
    x = 4,084,231.77/3,168.04
  6. Step 6: Final answer
    x = 1,289.20

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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.