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Finding the Fourth Proportional to 18,448.22, 27,661.26 and 7,356.62

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Solution

The fourth proportional to 18,448.22, 27,661.26 and 7,356.62 is: 11,030.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,448.22 : 27,661.26 = 7,356.62 : x
  2. Step 2: Convert to fraction form
    18,448.22/27,661.26 = 7,356.62/x
  3. Step 3: Cross multiply
    18,448.22x = 27,661.26 × 7,356.62
  4. Step 4: Simplify right side
    18,448.22x = 203,493,378.54
  5. Step 5: Solve for x
    x = 203,493,378.54/18,448.22
  6. Step 6: Final answer
    x = 11,030.52

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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.