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Finding the Fourth Proportional to 7,099.56, 9,797.40 and 4,115.97

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Solution

The fourth proportional to 7,099.56, 9,797.40 and 4,115.97 is: 5,680.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,099.56 : 9,797.40 = 4,115.97 : x
  2. Step 2: Convert to fraction form
    7,099.56/9,797.40 = 4,115.97/x
  3. Step 3: Cross multiply
    7,099.56x = 9,797.40 × 4,115.97
  4. Step 4: Simplify right side
    7,099.56x = 40,325,804.48
  5. Step 5: Solve for x
    x = 40,325,804.48/7,099.56
  6. Step 6: Final answer
    x = 5,680.04

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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.