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Finding the Fourth Proportional to 18,223.56, 27,346.86 and 10,447.56

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Solution

The fourth proportional to 18,223.56, 27,346.86 and 10,447.56 is: 15,677.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,223.56 : 27,346.86 = 10,447.56 : x
  2. Step 2: Convert to fraction form
    18,223.56/27,346.86 = 10,447.56/x
  3. Step 3: Cross multiply
    18,223.56x = 27,346.86 × 10,447.56
  4. Step 4: Simplify right side
    18,223.56x = 285,707,960.66
  5. Step 5: Solve for x
    x = 285,707,960.66/18,223.56
  6. Step 6: Final answer
    x = 15,677.94

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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.