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Finding the Fourth Proportional to 19,662.26, 27,151.95 and 12,494.54

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Solution

The fourth proportional to 19,662.26, 27,151.95 and 12,494.54 is: 17,253.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,662.26 : 27,151.95 = 12,494.54 : x
  2. Step 2: Convert to fraction form
    19,662.26/27,151.95 = 12,494.54/x
  3. Step 3: Cross multiply
    19,662.26x = 27,151.95 × 12,494.54
  4. Step 4: Simplify right side
    19,662.26x = 339,251,125.35
  5. Step 5: Solve for x
    x = 339,251,125.35/19,662.26
  6. Step 6: Final answer
    x = 17,253.92

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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.