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Finding the Fourth Proportional to 22,653.75, 33,872.49 and 20,668.64

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Solution

The fourth proportional to 22,653.75, 33,872.49 and 20,668.64 is: 30,904.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,653.75 : 33,872.49 = 20,668.64 : x
  2. Step 2: Convert to fraction form
    22,653.75/33,872.49 = 20,668.64/x
  3. Step 3: Cross multiply
    22,653.75x = 33,872.49 × 20,668.64
  4. Step 4: Simplify right side
    22,653.75x = 700,098,386.39
  5. Step 5: Solve for x
    x = 700,098,386.39/22,653.75
  6. Step 6: Final answer
    x = 30,904.30

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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.