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Finding the Fourth Proportional to 16,959.96, 25,438.73 and 8,634.78

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Solution

The fourth proportional to 16,959.96, 25,438.73 and 8,634.78 is: 12,951.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,959.96 : 25,438.73 = 8,634.78 : x
  2. Step 2: Convert to fraction form
    16,959.96/25,438.73 = 8,634.78/x
  3. Step 3: Cross multiply
    16,959.96x = 25,438.73 × 8,634.78
  4. Step 4: Simplify right side
    16,959.96x = 219,657,793.86
  5. Step 5: Solve for x
    x = 219,657,793.86/16,959.96
  6. Step 6: Final answer
    x = 12,951.55

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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.