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Finding the Fourth Proportional to 16,858.86, 25,254.44 and 8,399.86

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Solution

The fourth proportional to 16,858.86, 25,254.44 and 8,399.86 is: 12,582.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,858.86 : 25,254.44 = 8,399.86 : x
  2. Step 2: Convert to fraction form
    16,858.86/25,254.44 = 8,399.86/x
  3. Step 3: Cross multiply
    16,858.86x = 25,254.44 × 8,399.86
  4. Step 4: Simplify right side
    16,858.86x = 212,133,760.38
  5. Step 5: Solve for x
    x = 212,133,760.38/16,858.86
  6. Step 6: Final answer
    x = 12,582.92

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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.