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Finding the Fourth Proportional to 18,793.72, 28,193.01 and 6,308.38

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Solution

The fourth proportional to 18,793.72, 28,193.01 and 6,308.38 is: 9,463.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,793.72 : 28,193.01 = 6,308.38 : x
  2. Step 2: Convert to fraction form
    18,793.72/28,193.01 = 6,308.38/x
  3. Step 3: Cross multiply
    18,793.72x = 28,193.01 × 6,308.38
  4. Step 4: Simplify right side
    18,793.72x = 177,852,220.42
  5. Step 5: Solve for x
    x = 177,852,220.42/18,793.72
  6. Step 6: Final answer
    x = 9,463.39

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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.