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Finding the Fourth Proportional to 22,661.90, 33,995.15 and 10,813.65

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Solution

The fourth proportional to 22,661.90, 33,995.15 and 10,813.65 is: 16,221.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,661.90 : 33,995.15 = 10,813.65 : x
  2. Step 2: Convert to fraction form
    22,661.90/33,995.15 = 10,813.65/x
  3. Step 3: Cross multiply
    22,661.90x = 33,995.15 × 10,813.65
  4. Step 4: Simplify right side
    22,661.90x = 367,611,653.80
  5. Step 5: Solve for x
    x = 367,611,653.80/22,661.90
  6. Step 6: Final answer
    x = 16,221.57

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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.