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Finding the Fourth Proportional to 16,921.26, 25,355.73 and 7,559.82

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Solution

The fourth proportional to 16,921.26, 25,355.73 and 7,559.82 is: 11,328.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,921.26 : 25,355.73 = 7,559.82 : x
  2. Step 2: Convert to fraction form
    16,921.26/25,355.73 = 7,559.82/x
  3. Step 3: Cross multiply
    16,921.26x = 25,355.73 × 7,559.82
  4. Step 4: Simplify right side
    16,921.26x = 191,684,754.77
  5. Step 5: Solve for x
    x = 191,684,754.77/16,921.26
  6. Step 6: Final answer
    x = 11,328.04

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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.