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Finding the Fourth Proportional to 7,618.38, 10,506.52 and 4,786.02

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Solution

The fourth proportional to 7,618.38, 10,506.52 and 4,786.02 is: 6,600.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,618.38 : 10,506.52 = 4,786.02 : x
  2. Step 2: Convert to fraction form
    7,618.38/10,506.52 = 4,786.02/x
  3. Step 3: Cross multiply
    7,618.38x = 10,506.52 × 4,786.02
  4. Step 4: Simplify right side
    7,618.38x = 50,284,414.85
  5. Step 5: Solve for x
    x = 50,284,414.85/7,618.38
  6. Step 6: Final answer
    x = 6,600.41

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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.