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Finding the Fourth Proportional to 3,576.98, 4,936.20 and 2,005.07

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Solution

The fourth proportional to 3,576.98, 4,936.20 and 2,005.07 is: 2,766.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,576.98 : 4,936.20 = 2,005.07 : x
  2. Step 2: Convert to fraction form
    3,576.98/4,936.20 = 2,005.07/x
  3. Step 3: Cross multiply
    3,576.98x = 4,936.20 × 2,005.07
  4. Step 4: Simplify right side
    3,576.98x = 9,897,401.85
  5. Step 5: Solve for x
    x = 9,897,401.85/3,576.98
  6. Step 6: Final answer
    x = 2,766.98

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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.