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Finding the Fourth Proportional to 36,784.80, 55,212.84 and 34,786.80

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Solution

The fourth proportional to 36,784.80, 55,212.84 and 34,786.80 is: 52,213.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,784.80 : 55,212.84 = 34,786.80 : x
  2. Step 2: Convert to fraction form
    36,784.80/55,212.84 = 34,786.80/x
  3. Step 3: Cross multiply
    36,784.80x = 55,212.84 × 34,786.80
  4. Step 4: Simplify right side
    36,784.80x = 1,920,678,022.51
  5. Step 5: Solve for x
    x = 1,920,678,022.51/36,784.80
  6. Step 6: Final answer
    x = 52,213.90

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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.