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Finding the Fourth Proportional to 33,786.56, 46,624.56 and 18,678.16

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Solution

The fourth proportional to 33,786.56, 46,624.56 and 18,678.16 is: 25,775.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,786.56 : 46,624.56 = 18,678.16 : x
  2. Step 2: Convert to fraction form
    33,786.56/46,624.56 = 18,678.16/x
  3. Step 3: Cross multiply
    33,786.56x = 46,624.56 × 18,678.16
  4. Step 4: Simplify right side
    33,786.56x = 870,860,991.61
  5. Step 5: Solve for x
    x = 870,860,991.61/33,786.56
  6. Step 6: Final answer
    x = 25,775.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.