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Finding the Fourth Proportional to 6,627.12, 9,942.84 and 3,339.96

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Solution

The fourth proportional to 6,627.12, 9,942.84 and 3,339.96 is: 5,011.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,627.12 : 9,942.84 = 3,339.96 : x
  2. Step 2: Convert to fraction form
    6,627.12/9,942.84 = 3,339.96/x
  3. Step 3: Cross multiply
    6,627.12x = 9,942.84 × 3,339.96
  4. Step 4: Simplify right side
    6,627.12x = 33,208,687.89
  5. Step 5: Solve for x
    x = 33,208,687.89/6,627.12
  6. Step 6: Final answer
    x = 5,011.03

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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.