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Finding the Fourth Proportional to 4,699.81, 7,049.94 and 2,750.64

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Solution

The fourth proportional to 4,699.81, 7,049.94 and 2,750.64 is: 4,126.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,699.81 : 7,049.94 = 2,750.64 : x
  2. Step 2: Convert to fraction form
    4,699.81/7,049.94 = 2,750.64/x
  3. Step 3: Cross multiply
    4,699.81x = 7,049.94 × 2,750.64
  4. Step 4: Simplify right side
    4,699.81x = 19,391,846.96
  5. Step 5: Solve for x
    x = 19,391,846.96/4,699.81
  6. Step 6: Final answer
    x = 4,126.09

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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.