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Finding the Fourth Proportional to 17,933, 26,903.82 and 5,621

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Solution

The fourth proportional to 17,933, 26,903.82 and 5,621 is: 8,432.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,933 : 26,903.82 = 5,621 : x
  2. Step 2: Convert to fraction form
    17,933/26,903.82 = 5,621/x
  3. Step 3: Cross multiply
    17,933x = 26,903.82 × 5,621
  4. Step 4: Simplify right side
    17,933x = 151,226,372.22
  5. Step 5: Solve for x
    x = 151,226,372.22/17,933
  6. Step 6: Final answer
    x = 8,432.85

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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.