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Finding the Fourth Proportional to 25,940.25, 35,797.89 and 15,191.82

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Solution

The fourth proportional to 25,940.25, 35,797.89 and 15,191.82 is: 20,964.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,940.25 : 35,797.89 = 15,191.82 : x
  2. Step 2: Convert to fraction form
    25,940.25/35,797.89 = 15,191.82/x
  3. Step 3: Cross multiply
    25,940.25x = 35,797.89 × 15,191.82
  4. Step 4: Simplify right side
    25,940.25x = 543,835,101.26
  5. Step 5: Solve for x
    x = 543,835,101.26/25,940.25
  6. Step 6: Final answer
    x = 20,964.91

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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.