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Finding the Fourth Proportional to 6,129.10, 8,462.49 and 4,786.22

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Solution

The fourth proportional to 6,129.10, 8,462.49 and 4,786.22 is: 6,608.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,129.10 : 8,462.49 = 4,786.22 : x
  2. Step 2: Convert to fraction form
    6,129.10/8,462.49 = 4,786.22/x
  3. Step 3: Cross multiply
    6,129.10x = 8,462.49 × 4,786.22
  4. Step 4: Simplify right side
    6,129.10x = 40,503,321.42
  5. Step 5: Solve for x
    x = 40,503,321.42/6,129.10
  6. Step 6: Final answer
    x = 6,608.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.