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Finding the Fourth Proportional to 7,889.42, 11,832.11 and 2,341.45

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Solution

The fourth proportional to 7,889.42, 11,832.11 and 2,341.45 is: 3,511.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,889.42 : 11,832.11 = 2,341.45 : x
  2. Step 2: Convert to fraction form
    7,889.42/11,832.11 = 2,341.45/x
  3. Step 3: Cross multiply
    7,889.42x = 11,832.11 × 2,341.45
  4. Step 4: Simplify right side
    7,889.42x = 27,704,293.96
  5. Step 5: Solve for x
    x = 27,704,293.96/7,889.42
  6. Step 6: Final answer
    x = 3,511.58

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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.