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Finding the Fourth Proportional to 33,507.78, 50,261.76 and 11,315.22

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Solution

The fourth proportional to 33,507.78, 50,261.76 and 11,315.22 is: 16,972.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,507.78 : 50,261.76 = 11,315.22 : x
  2. Step 2: Convert to fraction form
    33,507.78/50,261.76 = 11,315.22/x
  3. Step 3: Cross multiply
    33,507.78x = 50,261.76 × 11,315.22
  4. Step 4: Simplify right side
    33,507.78x = 568,722,871.99
  5. Step 5: Solve for x
    x = 568,722,871.99/33,507.78
  6. Step 6: Final answer
    x = 16,972.86

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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.