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Finding the Fourth Proportional to 16,855.60, 25,272.60 and 6,998.80

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Solution

The fourth proportional to 16,855.60, 25,272.60 and 6,998.80 is: 10,493.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,855.60 : 25,272.60 = 6,998.80 : x
  2. Step 2: Convert to fraction form
    16,855.60/25,272.60 = 6,998.80/x
  3. Step 3: Cross multiply
    16,855.60x = 25,272.60 × 6,998.80
  4. Step 4: Simplify right side
    16,855.60x = 176,877,872.88
  5. Step 5: Solve for x
    x = 176,877,872.88/16,855.60
  6. Step 6: Final answer
    x = 10,493.72

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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.