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Finding the Fourth Proportional to 22,120.65, 30,527.01 and 12,049.65

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Solution

The fourth proportional to 22,120.65, 30,527.01 and 12,049.65 is: 16,628.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,120.65 : 30,527.01 = 12,049.65 : x
  2. Step 2: Convert to fraction form
    22,120.65/30,527.01 = 12,049.65/x
  3. Step 3: Cross multiply
    22,120.65x = 30,527.01 × 12,049.65
  4. Step 4: Simplify right side
    22,120.65x = 367,839,786.05
  5. Step 5: Solve for x
    x = 367,839,786.05/22,120.65
  6. Step 6: Final answer
    x = 16,628.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.