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Finding the Fourth Proportional to 8,530.20, 11,771.52 and 4,804.20

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Solution

The fourth proportional to 8,530.20, 11,771.52 and 4,804.20 is: 6,629.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,530.20 : 11,771.52 = 4,804.20 : x
  2. Step 2: Convert to fraction form
    8,530.20/11,771.52 = 4,804.20/x
  3. Step 3: Cross multiply
    8,530.20x = 11,771.52 × 4,804.20
  4. Step 4: Simplify right side
    8,530.20x = 56,552,736.38
  5. Step 5: Solve for x
    x = 56,552,736.38/8,530.20
  6. Step 6: Final answer
    x = 6,629.71

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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.