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Finding the Fourth Proportional to 25,797.60, 35,604.72 and 18,721.44

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Solution

The fourth proportional to 25,797.60, 35,604.72 and 18,721.44 is: 25,838.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,797.60 : 35,604.72 = 18,721.44 : x
  2. Step 2: Convert to fraction form
    25,797.60/35,604.72 = 18,721.44/x
  3. Step 3: Cross multiply
    25,797.60x = 35,604.72 × 18,721.44
  4. Step 4: Simplify right side
    25,797.60x = 666,571,629.20
  5. Step 5: Solve for x
    x = 666,571,629.20/25,797.60
  6. Step 6: Final answer
    x = 25,838.51

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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.