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Finding the Fourth Proportional to 18,458.96, 27,672.06 and 6,769.49

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Solution

The fourth proportional to 18,458.96, 27,672.06 and 6,769.49 is: 10,148.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,458.96 : 27,672.06 = 6,769.49 : x
  2. Step 2: Convert to fraction form
    18,458.96/27,672.06 = 6,769.49/x
  3. Step 3: Cross multiply
    18,458.96x = 27,672.06 × 6,769.49
  4. Step 4: Simplify right side
    18,458.96x = 187,325,733.45
  5. Step 5: Solve for x
    x = 187,325,733.45/18,458.96
  6. Step 6: Final answer
    x = 10,148.23

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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.