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Finding the Fourth Proportional to 6,664.74, 9,990.88 and 2,964.96

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Solution

The fourth proportional to 6,664.74, 9,990.88 and 2,964.96 is: 4,444.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,664.74 : 9,990.88 = 2,964.96 : x
  2. Step 2: Convert to fraction form
    6,664.74/9,990.88 = 2,964.96/x
  3. Step 3: Cross multiply
    6,664.74x = 9,990.88 × 2,964.96
  4. Step 4: Simplify right side
    6,664.74x = 29,622,552.15
  5. Step 5: Solve for x
    x = 29,622,552.15/6,664.74
  6. Step 6: Final answer
    x = 4,444.67

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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.