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Finding the Fourth Proportional to 18,793.42, 28,169.75 and 9,410.82

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Solution

The fourth proportional to 18,793.42, 28,169.75 and 9,410.82 is: 14,106.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,793.42 : 28,169.75 = 9,410.82 : x
  2. Step 2: Convert to fraction form
    18,793.42/28,169.75 = 9,410.82/x
  3. Step 3: Cross multiply
    18,793.42x = 28,169.75 × 9,410.82
  4. Step 4: Simplify right side
    18,793.42x = 265,100,258.79
  5. Step 5: Solve for x
    x = 265,100,258.79/18,793.42
  6. Step 6: Final answer
    x = 14,106.02

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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.