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Finding the Fourth Proportional to 18,406.80, 27,612.84 and 5,922.68

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Solution

The fourth proportional to 18,406.80, 27,612.84 and 5,922.68 is: 8,884.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,406.80 : 27,612.84 = 5,922.68 : x
  2. Step 2: Convert to fraction form
    18,406.80/27,612.84 = 5,922.68/x
  3. Step 3: Cross multiply
    18,406.80x = 27,612.84 × 5,922.68
  4. Step 4: Simplify right side
    18,406.80x = 163,541,877.15
  5. Step 5: Solve for x
    x = 163,541,877.15/18,406.80
  6. Step 6: Final answer
    x = 8,884.86

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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.