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Finding the Fourth Proportional to 92,660.82, 138,990.21 and 22,540.20

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Solution

The fourth proportional to 92,660.82, 138,990.21 and 22,540.20 is: 33,810.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,660.82 : 138,990.21 = 22,540.20 : x
  2. Step 2: Convert to fraction form
    92,660.82/138,990.21 = 22,540.20/x
  3. Step 3: Cross multiply
    92,660.82x = 138,990.21 × 22,540.20
  4. Step 4: Simplify right side
    92,660.82x = 3,132,867,131.44
  5. Step 5: Solve for x
    x = 3,132,867,131.44/92,660.82
  6. Step 6: Final answer
    x = 33,810.05

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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.