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Finding the Fourth Proportional to 3,311.98, 4,966.86 and 3,093.60

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Solution

The fourth proportional to 3,311.98, 4,966.86 and 3,093.60 is: 4,639.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,311.98 : 4,966.86 = 3,093.60 : x
  2. Step 2: Convert to fraction form
    3,311.98/4,966.86 = 3,093.60/x
  3. Step 3: Cross multiply
    3,311.98x = 4,966.86 × 3,093.60
  4. Step 4: Simplify right side
    3,311.98x = 15,365,478.10
  5. Step 5: Solve for x
    x = 15,365,478.10/3,311.98
  6. Step 6: Final answer
    x = 4,639.36

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1.5x scale

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.