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Finding the Fourth Proportional to 19,614.78, 27,067.74 and 10,662.12

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Solution

The fourth proportional to 19,614.78, 27,067.74 and 10,662.12 is: 14,713.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,614.78 : 27,067.74 = 10,662.12 : x
  2. Step 2: Convert to fraction form
    19,614.78/27,067.74 = 10,662.12/x
  3. Step 3: Cross multiply
    19,614.78x = 27,067.74 × 10,662.12
  4. Step 4: Simplify right side
    19,614.78x = 288,599,492.01
  5. Step 5: Solve for x
    x = 288,599,492.01/19,614.78
  6. Step 6: Final answer
    x = 14,713.37

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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.