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Finding the Fourth Proportional to 4,089.26, 6,133.92 and 3,890.06

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Solution

The fourth proportional to 4,089.26, 6,133.92 and 3,890.06 is: 5,835.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,089.26 : 6,133.92 = 3,890.06 : x
  2. Step 2: Convert to fraction form
    4,089.26/6,133.92 = 3,890.06/x
  3. Step 3: Cross multiply
    4,089.26x = 6,133.92 × 3,890.06
  4. Step 4: Simplify right side
    4,089.26x = 23,861,286.17
  5. Step 5: Solve for x
    x = 23,861,286.17/4,089.26
  6. Step 6: Final answer
    x = 5,835.11

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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.