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Finding the Fourth Proportional to 22,175.56, 33,104.57 and 20,555.56

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Solution

The fourth proportional to 22,175.56, 33,104.57 and 20,555.56 is: 30,686.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,175.56 : 33,104.57 = 20,555.56 : x
  2. Step 2: Convert to fraction form
    22,175.56/33,104.57 = 20,555.56/x
  3. Step 3: Cross multiply
    22,175.56x = 33,104.57 × 20,555.56
  4. Step 4: Simplify right side
    22,175.56x = 680,482,974.91
  5. Step 5: Solve for x
    x = 680,482,974.91/22,175.56
  6. Step 6: Final answer
    x = 30,686.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.