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Finding the Fourth Proportional to 33,783.90, 46,621.77 and 18,879.90

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Solution

The fourth proportional to 33,783.90, 46,621.77 and 18,879.90 is: 26,054.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,783.90 : 46,621.77 = 18,879.90 : x
  2. Step 2: Convert to fraction form
    33,783.90/46,621.77 = 18,879.90/x
  3. Step 3: Cross multiply
    33,783.90x = 46,621.77 × 18,879.90
  4. Step 4: Simplify right side
    33,783.90x = 880,214,109.79
  5. Step 5: Solve for x
    x = 880,214,109.79/33,783.90
  6. Step 6: Final answer
    x = 26,054.25

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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.