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Finding the Fourth Proportional to 69,813.90, 104,713.56 and 36,520.56

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Solution

The fourth proportional to 69,813.90, 104,713.56 and 36,520.56 is: 54,777.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,813.90 : 104,713.56 = 36,520.56 : x
  2. Step 2: Convert to fraction form
    69,813.90/104,713.56 = 36,520.56/x
  3. Step 3: Cross multiply
    69,813.90x = 104,713.56 × 36,520.56
  4. Step 4: Simplify right side
    69,813.90x = 3,824,197,850.79
  5. Step 5: Solve for x
    x = 3,824,197,850.79/69,813.90
  6. Step 6: Final answer
    x = 54,777.03

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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.