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Finding the Fourth Proportional to 25,996.96, 35,843.25 and 21,696.22

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Solution

The fourth proportional to 25,996.96, 35,843.25 and 21,696.22 is: 29,913.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,996.96 : 35,843.25 = 21,696.22 : x
  2. Step 2: Convert to fraction form
    25,996.96/35,843.25 = 21,696.22/x
  3. Step 3: Cross multiply
    25,996.96x = 35,843.25 × 21,696.22
  4. Step 4: Simplify right side
    25,996.96x = 777,663,037.52
  5. Step 5: Solve for x
    x = 777,663,037.52/25,996.96
  6. Step 6: Final answer
    x = 29,913.61

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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.