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Finding the Fourth Proportional to 84,103.55, 126,179.67 and 24,940.64

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Solution

The fourth proportional to 84,103.55, 126,179.67 and 24,940.64 is: 37,418.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,103.55 : 126,179.67 = 24,940.64 : x
  2. Step 2: Convert to fraction form
    84,103.55/126,179.67 = 24,940.64/x
  3. Step 3: Cross multiply
    84,103.55x = 126,179.67 × 24,940.64
  4. Step 4: Simplify right side
    84,103.55x = 3,147,002,133.77
  5. Step 5: Solve for x
    x = 3,147,002,133.77/84,103.55
  6. Step 6: Final answer
    x = 37,418.18

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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.