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Finding the Fourth Proportional to 8,581.91, 11,842.05 and 4,804.55

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Solution

The fourth proportional to 8,581.91, 11,842.05 and 4,804.55 is: 6,629.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,581.91 : 11,842.05 = 4,804.55 : x
  2. Step 2: Convert to fraction form
    8,581.91/11,842.05 = 4,804.55/x
  3. Step 3: Cross multiply
    8,581.91x = 11,842.05 × 4,804.55
  4. Step 4: Simplify right side
    8,581.91x = 56,895,662.12
  5. Step 5: Solve for x
    x = 56,895,662.12/8,581.91
  6. Step 6: Final answer
    x = 6,629.72

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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.