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Finding the Fourth Proportional to 8,364.24, 11,542.20 and 4,638

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Solution

The fourth proportional to 8,364.24, 11,542.20 and 4,638 is: 6,400.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,364.24 : 11,542.20 = 4,638 : x
  2. Step 2: Convert to fraction form
    8,364.24/11,542.20 = 4,638/x
  3. Step 3: Cross multiply
    8,364.24x = 11,542.20 × 4,638
  4. Step 4: Simplify right side
    8,364.24x = 53,532,723.60
  5. Step 5: Solve for x
    x = 53,532,723.60/8,364.24
  6. Step 6: Final answer
    x = 6,400.19

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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.