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Finding the Fourth Proportional to 7,179.02, 9,912.21 and 4,794.65

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Solution

The fourth proportional to 7,179.02, 9,912.21 and 4,794.65 is: 6,620.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,179.02 : 9,912.21 = 4,794.65 : x
  2. Step 2: Convert to fraction form
    7,179.02/9,912.21 = 4,794.65/x
  3. Step 3: Cross multiply
    7,179.02x = 9,912.21 × 4,794.65
  4. Step 4: Simplify right side
    7,179.02x = 47,525,577.68
  5. Step 5: Solve for x
    x = 47,525,577.68/7,179.02
  6. Step 6: Final answer
    x = 6,620.06

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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.