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Finding the Fourth Proportional to 33,809.80, 50,714.70 and 9,185.80

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Solution

The fourth proportional to 33,809.80, 50,714.70 and 9,185.80 is: 13,778.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,809.80 : 50,714.70 = 9,185.80 : x
  2. Step 2: Convert to fraction form
    33,809.80/50,714.70 = 9,185.80/x
  3. Step 3: Cross multiply
    33,809.80x = 50,714.70 × 9,185.80
  4. Step 4: Simplify right side
    33,809.80x = 465,855,091.26
  5. Step 5: Solve for x
    x = 465,855,091.26/33,809.80
  6. Step 6: Final answer
    x = 13,778.70

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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.