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Finding the Fourth Proportional to 37,190.40, 55,742.40 and 14,992.80

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Solution

The fourth proportional to 37,190.40, 55,742.40 and 14,992.80 is: 22,471.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,190.40 : 55,742.40 = 14,992.80 : x
  2. Step 2: Convert to fraction form
    37,190.40/55,742.40 = 14,992.80/x
  3. Step 3: Cross multiply
    37,190.40x = 55,742.40 × 14,992.80
  4. Step 4: Simplify right side
    37,190.40x = 835,734,654.72
  5. Step 5: Solve for x
    x = 835,734,654.72/37,190.40
  6. Step 6: Final answer
    x = 22,471.78

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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.