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Finding the Fourth Proportional to 18,425.64, 27,638.46 and 6,736.14

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Solution

The fourth proportional to 18,425.64, 27,638.46 and 6,736.14 is: 10,104.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,425.64 : 27,638.46 = 6,736.14 : x
  2. Step 2: Convert to fraction form
    18,425.64/27,638.46 = 6,736.14/x
  3. Step 3: Cross multiply
    18,425.64x = 27,638.46 × 6,736.14
  4. Step 4: Simplify right side
    18,425.64x = 186,176,535.94
  5. Step 5: Solve for x
    x = 186,176,535.94/18,425.64
  6. Step 6: Final answer
    x = 10,104.21

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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.