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Finding the Fourth Proportional to 17,608.16, 26,412.37 and 5,921.21

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Solution

The fourth proportional to 17,608.16, 26,412.37 and 5,921.21 is: 8,881.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,608.16 : 26,412.37 = 5,921.21 : x
  2. Step 2: Convert to fraction form
    17,608.16/26,412.37 = 5,921.21/x
  3. Step 3: Cross multiply
    17,608.16x = 26,412.37 × 5,921.21
  4. Step 4: Simplify right side
    17,608.16x = 156,393,138.14
  5. Step 5: Solve for x
    x = 156,393,138.14/17,608.16
  6. Step 6: Final answer
    x = 8,881.86

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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.