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Finding the Fourth Proportional to 6,100.67, 9,147.74 and 1,939.55

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Solution

The fourth proportional to 6,100.67, 9,147.74 and 1,939.55 is: 2,908.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,100.67 : 9,147.74 = 1,939.55 : x
  2. Step 2: Convert to fraction form
    6,100.67/9,147.74 = 1,939.55/x
  3. Step 3: Cross multiply
    6,100.67x = 9,147.74 × 1,939.55
  4. Step 4: Simplify right side
    6,100.67x = 17,742,489.42
  5. Step 5: Solve for x
    x = 17,742,489.42/6,100.67
  6. Step 6: Final answer
    x = 2,908.29

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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.