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Finding the Fourth Proportional to 16,874.70, 25,312.77 and 8,558.70

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Solution

The fourth proportional to 16,874.70, 25,312.77 and 8,558.70 is: 12,838.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,874.70 : 25,312.77 = 8,558.70 : x
  2. Step 2: Convert to fraction form
    16,874.70/25,312.77 = 8,558.70/x
  3. Step 3: Cross multiply
    16,874.70x = 25,312.77 × 8,558.70
  4. Step 4: Simplify right side
    16,874.70x = 216,644,404.60
  5. Step 5: Solve for x
    x = 216,644,404.60/16,874.70
  6. Step 6: Final answer
    x = 12,838.42

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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.