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Finding the Fourth Proportional to 25,958.60, 35,836.64 and 20,797.97

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Solution

The fourth proportional to 25,958.60, 35,836.64 and 20,797.97 is: 28,712.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,958.60 : 35,836.64 = 20,797.97 : x
  2. Step 2: Convert to fraction form
    25,958.60/35,836.64 = 20,797.97/x
  3. Step 3: Cross multiply
    25,958.60x = 35,836.64 × 20,797.97
  4. Step 4: Simplify right side
    25,958.60x = 745,329,236.43
  5. Step 5: Solve for x
    x = 745,329,236.43/25,958.60
  6. Step 6: Final answer
    x = 28,712.23

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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.