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Finding the Fourth Proportional to 11,672.79, 16,108.92 and 6,367.83

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Solution

The fourth proportional to 11,672.79, 16,108.92 and 6,367.83 is: 8,787.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,672.79 : 16,108.92 = 6,367.83 : x
  2. Step 2: Convert to fraction form
    11,672.79/16,108.92 = 6,367.83/x
  3. Step 3: Cross multiply
    11,672.79x = 16,108.92 × 6,367.83
  4. Step 4: Simplify right side
    11,672.79x = 102,578,864.04
  5. Step 5: Solve for x
    x = 102,578,864.04/11,672.79
  6. Step 6: Final answer
    x = 8,787.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.