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Finding the Fourth Proportional to 18,225.56, 27,349.86 and 10,449.56

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Solution

The fourth proportional to 18,225.56, 27,349.86 and 10,449.56 is: 15,680.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,225.56 : 27,349.86 = 10,449.56 : x
  2. Step 2: Convert to fraction form
    18,225.56/27,349.86 = 10,449.56/x
  3. Step 3: Cross multiply
    18,225.56x = 27,349.86 × 10,449.56
  4. Step 4: Simplify right side
    18,225.56x = 285,794,003.06
  5. Step 5: Solve for x
    x = 285,794,003.06/18,225.56
  6. Step 6: Final answer
    x = 15,680.94

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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.