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Finding the Fourth Proportional to 36,758.80, 50,725.68 and 19,991.80

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Solution

The fourth proportional to 36,758.80, 50,725.68 and 19,991.80 is: 27,587.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,758.80 : 50,725.68 = 19,991.80 : x
  2. Step 2: Convert to fraction form
    36,758.80/50,725.68 = 19,991.80/x
  3. Step 3: Cross multiply
    36,758.80x = 50,725.68 × 19,991.80
  4. Step 4: Simplify right side
    36,758.80x = 1,014,097,649.42
  5. Step 5: Solve for x
    x = 1,014,097,649.42/36,758.80
  6. Step 6: Final answer
    x = 27,587.89

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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.