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Finding the Fourth Proportional to 18,241.92, 27,304.56 and 12,963.96

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Solution

The fourth proportional to 18,241.92, 27,304.56 and 12,963.96 is: 19,404.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,241.92 : 27,304.56 = 12,963.96 : x
  2. Step 2: Convert to fraction form
    18,241.92/27,304.56 = 12,963.96/x
  3. Step 3: Cross multiply
    18,241.92x = 27,304.56 × 12,963.96
  4. Step 4: Simplify right side
    18,241.92x = 353,975,223.66
  5. Step 5: Solve for x
    x = 353,975,223.66/18,241.92
  6. Step 6: Final answer
    x = 19,404.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.