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Finding the Fourth Proportional to 33,783.52, 46,623.60 and 19,640.80

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Solution

The fourth proportional to 33,783.52, 46,623.60 and 19,640.80 is: 27,105.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,783.52 : 46,623.60 = 19,640.80 : x
  2. Step 2: Convert to fraction form
    33,783.52/46,623.60 = 19,640.80/x
  3. Step 3: Cross multiply
    33,783.52x = 46,623.60 × 19,640.80
  4. Step 4: Simplify right side
    33,783.52x = 915,724,802.88
  5. Step 5: Solve for x
    x = 915,724,802.88/33,783.52
  6. Step 6: Final answer
    x = 27,105.67

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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.