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Finding the Fourth Proportional to 7,168.68, 10,760.30 and 5,091.03

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Solution

The fourth proportional to 7,168.68, 10,760.30 and 5,091.03 is: 7,641.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,168.68 : 10,760.30 = 5,091.03 : x
  2. Step 2: Convert to fraction form
    7,168.68/10,760.30 = 5,091.03/x
  3. Step 3: Cross multiply
    7,168.68x = 10,760.30 × 5,091.03
  4. Step 4: Simplify right side
    7,168.68x = 54,780,984.65
  5. Step 5: Solve for x
    x = 54,780,984.65/7,168.68
  6. Step 6: Final answer
    x = 7,641.71

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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.