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Finding the Fourth Proportional to 16,787.91, 25,186.02 and 8,358.39

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Solution

The fourth proportional to 16,787.91, 25,186.02 and 8,358.39 is: 12,539.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,787.91 : 25,186.02 = 8,358.39 : x
  2. Step 2: Convert to fraction form
    16,787.91/25,186.02 = 8,358.39/x
  3. Step 3: Cross multiply
    16,787.91x = 25,186.02 × 8,358.39
  4. Step 4: Simplify right side
    16,787.91x = 210,514,577.71
  5. Step 5: Solve for x
    x = 210,514,577.71/16,787.91
  6. Step 6: Final answer
    x = 12,539.65

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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.