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Finding the Fourth Proportional to 33,797.80, 50,679.78 and 10,421.20

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Solution

The fourth proportional to 33,797.80, 50,679.78 and 10,421.20 is: 15,626.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,797.80 : 50,679.78 = 10,421.20 : x
  2. Step 2: Convert to fraction form
    33,797.80/50,679.78 = 10,421.20/x
  3. Step 3: Cross multiply
    33,797.80x = 50,679.78 × 10,421.20
  4. Step 4: Simplify right side
    33,797.80x = 528,144,123.34
  5. Step 5: Solve for x
    x = 528,144,123.34/33,797.80
  6. Step 6: Final answer
    x = 15,626.58

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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.