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Finding the Fourth Proportional to 33,889.91, 46,768.16 and 18,782.80

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Solution

The fourth proportional to 33,889.91, 46,768.16 and 18,782.80 is: 25,920.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,889.91 : 46,768.16 = 18,782.80 : x
  2. Step 2: Convert to fraction form
    33,889.91/46,768.16 = 18,782.80/x
  3. Step 3: Cross multiply
    33,889.91x = 46,768.16 × 18,782.80
  4. Step 4: Simplify right side
    33,889.91x = 878,436,925.68
  5. Step 5: Solve for x
    x = 878,436,925.68/33,889.91
  6. Step 6: Final answer
    x = 25,920.31

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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.