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Finding the Fourth Proportional to 19,614.92, 27,068.46 and 11,231.42

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Solution

The fourth proportional to 19,614.92, 27,068.46 and 11,231.42 is: 15,499.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,614.92 : 27,068.46 = 11,231.42 : x
  2. Step 2: Convert to fraction form
    19,614.92/27,068.46 = 11,231.42/x
  3. Step 3: Cross multiply
    19,614.92x = 27,068.46 × 11,231.42
  4. Step 4: Simplify right side
    19,614.92x = 304,017,243.01
  5. Step 5: Solve for x
    x = 304,017,243.01/19,614.92
  6. Step 6: Final answer
    x = 15,499.29

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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.