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Finding the Fourth Proportional to 80,622.63, 120,933.81 and 25,218.63

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Solution

The fourth proportional to 80,622.63, 120,933.81 and 25,218.63 is: 37,827.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,622.63 : 120,933.81 = 25,218.63 : x
  2. Step 2: Convert to fraction form
    80,622.63/120,933.81 = 25,218.63/x
  3. Step 3: Cross multiply
    80,622.63x = 120,933.81 × 25,218.63
  4. Step 4: Simplify right side
    80,622.63x = 3,049,785,008.88
  5. Step 5: Solve for x
    x = 3,049,785,008.88/80,622.63
  6. Step 6: Final answer
    x = 37,827.90

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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.