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Finding the Fourth Proportional to 16,753.92, 25,137.80 and 8,429.44

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Solution

The fourth proportional to 16,753.92, 25,137.80 and 8,429.44 is: 12,647.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,753.92 : 25,137.80 = 8,429.44 : x
  2. Step 2: Convert to fraction form
    16,753.92/25,137.80 = 8,429.44/x
  3. Step 3: Cross multiply
    16,753.92x = 25,137.80 × 8,429.44
  4. Step 4: Simplify right side
    16,753.92x = 211,897,576.83
  5. Step 5: Solve for x
    x = 211,897,576.83/16,753.92
  6. Step 6: Final answer
    x = 12,647.64

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1.5x scale

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.