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Finding the Fourth Proportional to 6,940.52, 10,411.64 and 2,558

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Solution

The fourth proportional to 6,940.52, 10,411.64 and 2,558 is: 3,837.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,940.52 : 10,411.64 = 2,558 : x
  2. Step 2: Convert to fraction form
    6,940.52/10,411.64 = 2,558/x
  3. Step 3: Cross multiply
    6,940.52x = 10,411.64 × 2,558
  4. Step 4: Simplify right side
    6,940.52x = 26,632,975.12
  5. Step 5: Solve for x
    x = 26,632,975.12/6,940.52
  6. Step 6: Final answer
    x = 3,837.32

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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.