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Finding the Fourth Proportional to 22,696.80, 34,016.40 and 20,104.80

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Solution

The fourth proportional to 22,696.80, 34,016.40 and 20,104.80 is: 30,131.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,696.80 : 34,016.40 = 20,104.80 : x
  2. Step 2: Convert to fraction form
    22,696.80/34,016.40 = 20,104.80/x
  3. Step 3: Cross multiply
    22,696.80x = 34,016.40 × 20,104.80
  4. Step 4: Simplify right side
    22,696.80x = 683,892,918.72
  5. Step 5: Solve for x
    x = 683,892,918.72/22,696.80
  6. Step 6: Final answer
    x = 30,131.69

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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.