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Finding the Fourth Proportional to 16,658.87, 25,000.62 and 7,893.80

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Solution

The fourth proportional to 16,658.87, 25,000.62 and 7,893.80 is: 11,846.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,658.87 : 25,000.62 = 7,893.80 : x
  2. Step 2: Convert to fraction form
    16,658.87/25,000.62 = 7,893.80/x
  3. Step 3: Cross multiply
    16,658.87x = 25,000.62 × 7,893.80
  4. Step 4: Simplify right side
    16,658.87x = 197,349,769.15
  5. Step 5: Solve for x
    x = 197,349,769.15/16,658.87
  6. Step 6: Final answer
    x = 11,846.53

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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.