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Finding the Fourth Proportional to 3,926.07, 5,889.11 and 1,152.81

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Solution

The fourth proportional to 3,926.07, 5,889.11 and 1,152.81 is: 1,729.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,926.07 : 5,889.11 = 1,152.81 : x
  2. Step 2: Convert to fraction form
    3,926.07/5,889.11 = 1,152.81/x
  3. Step 3: Cross multiply
    3,926.07x = 5,889.11 × 1,152.81
  4. Step 4: Simplify right side
    3,926.07x = 6,789,019.14
  5. Step 5: Solve for x
    x = 6,789,019.14/3,926.07
  6. Step 6: Final answer
    x = 1,729.22

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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.