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Finding the Fourth Proportional to 19,614.25, 27,067.17 and 10,661.55

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Solution

The fourth proportional to 19,614.25, 27,067.17 and 10,661.55 is: 14,712.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,614.25 : 27,067.17 = 10,661.55 : x
  2. Step 2: Convert to fraction form
    19,614.25/27,067.17 = 10,661.55/x
  3. Step 3: Cross multiply
    19,614.25x = 27,067.17 × 10,661.55
  4. Step 4: Simplify right side
    19,614.25x = 288,577,986.31
  5. Step 5: Solve for x
    x = 288,577,986.31/19,614.25
  6. Step 6: Final answer
    x = 14,712.67

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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.