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Finding the Fourth Proportional to 18,653.27, 25,743.97 and 10,693.96

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Solution

The fourth proportional to 18,653.27, 25,743.97 and 10,693.96 is: 14,759.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,653.27 : 25,743.97 = 10,693.96 : x
  2. Step 2: Convert to fraction form
    18,653.27/25,743.97 = 10,693.96/x
  3. Step 3: Cross multiply
    18,653.27x = 25,743.97 × 10,693.96
  4. Step 4: Simplify right side
    18,653.27x = 275,304,985.42
  5. Step 5: Solve for x
    x = 275,304,985.42/18,653.27
  6. Step 6: Final answer
    x = 14,759.07

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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.