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Finding the Fourth Proportional to 18,794.66, 25,934.73 and 11,239.49

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Solution

The fourth proportional to 18,794.66, 25,934.73 and 11,239.49 is: 15,509.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,794.66 : 25,934.73 = 11,239.49 : x
  2. Step 2: Convert to fraction form
    18,794.66/25,934.73 = 11,239.49/x
  3. Step 3: Cross multiply
    18,794.66x = 25,934.73 × 11,239.49
  4. Step 4: Simplify right side
    18,794.66x = 291,493,138.49
  5. Step 5: Solve for x
    x = 291,493,138.49/18,794.66
  6. Step 6: Final answer
    x = 15,509.36

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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.