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Finding the Fourth Proportional to 15,793.09, 23,669.15 and 6,422.20

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Solution

The fourth proportional to 15,793.09, 23,669.15 and 6,422.20 is: 9,624.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,793.09 : 23,669.15 = 6,422.20 : x
  2. Step 2: Convert to fraction form
    15,793.09/23,669.15 = 6,422.20/x
  3. Step 3: Cross multiply
    15,793.09x = 23,669.15 × 6,422.20
  4. Step 4: Simplify right side
    15,793.09x = 152,007,923.85
  5. Step 5: Solve for x
    x = 152,007,923.85/15,793.09
  6. Step 6: Final answer
    x = 9,624.97

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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.