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Finding the Fourth Proportional to 6,760.56, 10,140.72 and 2,656.56

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Solution

The fourth proportional to 6,760.56, 10,140.72 and 2,656.56 is: 3,984.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,760.56 : 10,140.72 = 2,656.56 : x
  2. Step 2: Convert to fraction form
    6,760.56/10,140.72 = 2,656.56/x
  3. Step 3: Cross multiply
    6,760.56x = 10,140.72 × 2,656.56
  4. Step 4: Simplify right side
    6,760.56x = 26,939,431.12
  5. Step 5: Solve for x
    x = 26,939,431.12/6,760.56
  6. Step 6: Final answer
    x = 3,984.79

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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.