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Finding the Fourth Proportional to 18,423.63, 27,611.06 and 6,725.61

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Solution

The fourth proportional to 18,423.63, 27,611.06 and 6,725.61 is: 10,079.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,423.63 : 27,611.06 = 6,725.61 : x
  2. Step 2: Convert to fraction form
    18,423.63/27,611.06 = 6,725.61/x
  3. Step 3: Cross multiply
    18,423.63x = 27,611.06 × 6,725.61
  4. Step 4: Simplify right side
    18,423.63x = 185,701,187.62
  5. Step 5: Solve for x
    x = 185,701,187.62/18,423.63
  6. Step 6: Final answer
    x = 10,079.51

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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.