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Finding the Fourth Proportional to 29,357.08, 43,978.94 and 17,520.31

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Solution

The fourth proportional to 29,357.08, 43,978.94 and 17,520.31 is: 26,246.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,357.08 : 43,978.94 = 17,520.31 : x
  2. Step 2: Convert to fraction form
    29,357.08/43,978.94 = 17,520.31/x
  3. Step 3: Cross multiply
    29,357.08x = 43,978.94 × 17,520.31
  4. Step 4: Simplify right side
    29,357.08x = 770,524,662.27
  5. Step 5: Solve for x
    x = 770,524,662.27/29,357.08
  6. Step 6: Final answer
    x = 26,246.64

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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.