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Finding the Fourth Proportional to 16,891, 25,336.56 and 4,579

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Solution

The fourth proportional to 16,891, 25,336.56 and 4,579 is: 6,868.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,891 : 25,336.56 = 4,579 : x
  2. Step 2: Convert to fraction form
    16,891/25,336.56 = 4,579/x
  3. Step 3: Cross multiply
    16,891x = 25,336.56 × 4,579
  4. Step 4: Simplify right side
    16,891x = 116,016,108.24
  5. Step 5: Solve for x
    x = 116,016,108.24/16,891
  6. Step 6: Final answer
    x = 6,868.52

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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.