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Finding the Fourth Proportional to 37,747.80, 56,680.02 and 20,251.80

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Solution

The fourth proportional to 37,747.80, 56,680.02 and 20,251.80 is: 30,408.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,747.80 : 56,680.02 = 20,251.80 : x
  2. Step 2: Convert to fraction form
    37,747.80/56,680.02 = 20,251.80/x
  3. Step 3: Cross multiply
    37,747.80x = 56,680.02 × 20,251.80
  4. Step 4: Simplify right side
    37,747.80x = 1,147,872,429.04
  5. Step 5: Solve for x
    x = 1,147,872,429.04/37,747.80
  6. Step 6: Final answer
    x = 30,408.99

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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.