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Finding the Fourth Proportional to 69,013.94, 103,520.97 and 21,632.73

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Solution

The fourth proportional to 69,013.94, 103,520.97 and 21,632.73 is: 32,449.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,013.94 : 103,520.97 = 21,632.73 : x
  2. Step 2: Convert to fraction form
    69,013.94/103,520.97 = 21,632.73/x
  3. Step 3: Cross multiply
    69,013.94x = 103,520.97 × 21,632.73
  4. Step 4: Simplify right side
    69,013.94x = 2,239,441,193.35
  5. Step 5: Solve for x
    x = 2,239,441,193.35/69,013.94
  6. Step 6: Final answer
    x = 32,449.11

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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.