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Finding the Fourth Proportional to 8,800.38, 12,144.54 and 4,821.42

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Solution

The fourth proportional to 8,800.38, 12,144.54 and 4,821.42 is: 6,653.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,800.38 : 12,144.54 = 4,821.42 : x
  2. Step 2: Convert to fraction form
    8,800.38/12,144.54 = 4,821.42/x
  3. Step 3: Cross multiply
    8,800.38x = 12,144.54 × 4,821.42
  4. Step 4: Simplify right side
    8,800.38x = 58,553,928.05
  5. Step 5: Solve for x
    x = 58,553,928.05/8,800.38
  6. Step 6: Final answer
    x = 6,653.57

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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.