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Finding the Fourth Proportional to 3,168.13, 4,751.38 and 1,500.61

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Solution

The fourth proportional to 3,168.13, 4,751.38 and 1,500.61 is: 2,250.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,168.13 : 4,751.38 = 1,500.61 : x
  2. Step 2: Convert to fraction form
    3,168.13/4,751.38 = 1,500.61/x
  3. Step 3: Cross multiply
    3,168.13x = 4,751.38 × 1,500.61
  4. Step 4: Simplify right side
    3,168.13x = 7,129,968.34
  5. Step 5: Solve for x
    x = 7,129,968.34/3,168.13
  6. Step 6: Final answer
    x = 2,250.53

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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.