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Finding the Fourth Proportional to 8,793.50, 12,133.09 and 5,391.24

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Solution

The fourth proportional to 8,793.50, 12,133.09 and 5,391.24 is: 7,438.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,793.50 : 12,133.09 = 5,391.24 : x
  2. Step 2: Convert to fraction form
    8,793.50/12,133.09 = 5,391.24/x
  3. Step 3: Cross multiply
    8,793.50x = 12,133.09 × 5,391.24
  4. Step 4: Simplify right side
    8,793.50x = 65,412,400.13
  5. Step 5: Solve for x
    x = 65,412,400.13/8,793.50
  6. Step 6: Final answer
    x = 7,438.72

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1.5x scale

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.