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Finding the Fourth Proportional to 19,149, 26,425.67 and 11,195.61

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Solution

The fourth proportional to 19,149, 26,425.67 and 11,195.61 is: 15,449.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,149 : 26,425.67 = 11,195.61 : x
  2. Step 2: Convert to fraction form
    19,149/26,425.67 = 11,195.61/x
  3. Step 3: Cross multiply
    19,149x = 26,425.67 × 11,195.61
  4. Step 4: Simplify right side
    19,149x = 295,851,439.33
  5. Step 5: Solve for x
    x = 295,851,439.33/19,149
  6. Step 6: Final answer
    x = 15,449.97

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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.