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Finding the Fourth Proportional to 18,358.88, 25,465.22 and 17,729.48

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Solution

The fourth proportional to 18,358.88, 25,465.22 and 17,729.48 is: 24,592.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,358.88 : 25,465.22 = 17,729.48 : x
  2. Step 2: Convert to fraction form
    18,358.88/25,465.22 = 17,729.48/x
  3. Step 3: Cross multiply
    18,358.88x = 25,465.22 × 17,729.48
  4. Step 4: Simplify right side
    18,358.88x = 451,485,108.69
  5. Step 5: Solve for x
    x = 451,485,108.69/18,358.88
  6. Step 6: Final answer
    x = 24,592.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.