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Finding the Fourth Proportional to 7,072.65, 10,608.63 and 2,391.12

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Solution

The fourth proportional to 7,072.65, 10,608.63 and 2,391.12 is: 3,586.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,072.65 : 10,608.63 = 2,391.12 : x
  2. Step 2: Convert to fraction form
    7,072.65/10,608.63 = 2,391.12/x
  3. Step 3: Cross multiply
    7,072.65x = 10,608.63 × 2,391.12
  4. Step 4: Simplify right side
    7,072.65x = 25,366,507.37
  5. Step 5: Solve for x
    x = 25,366,507.37/7,072.65
  6. Step 6: Final answer
    x = 3,586.56

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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.