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Finding the Fourth Proportional to 80,523.66, 120,755.24 and 27,920.46

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Solution

The fourth proportional to 80,523.66, 120,755.24 and 27,920.46 is: 41,870.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,523.66 : 120,755.24 = 27,920.46 : x
  2. Step 2: Convert to fraction form
    80,523.66/120,755.24 = 27,920.46/x
  3. Step 3: Cross multiply
    80,523.66x = 120,755.24 × 27,920.46
  4. Step 4: Simplify right side
    80,523.66x = 3,371,541,848.21
  5. Step 5: Solve for x
    x = 3,371,541,848.21/80,523.66
  6. Step 6: Final answer
    x = 41,870.20

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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.