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Finding the Fourth Proportional to 16,873.68, 25,310.93 and 5,187

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Solution

The fourth proportional to 16,873.68, 25,310.93 and 5,187 is: 7,780.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,873.68 : 25,310.93 = 5,187 : x
  2. Step 2: Convert to fraction form
    16,873.68/25,310.93 = 5,187/x
  3. Step 3: Cross multiply
    16,873.68x = 25,310.93 × 5,187
  4. Step 4: Simplify right side
    16,873.68x = 131,287,767.98
  5. Step 5: Solve for x
    x = 131,287,767.98/16,873.68
  6. Step 6: Final answer
    x = 7,780.62

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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.