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Finding the Fourth Proportional to 6,376.55, 8,799.82 and 3,859.11

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Solution

The fourth proportional to 6,376.55, 8,799.82 and 3,859.11 is: 5,325.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,376.55 : 8,799.82 = 3,859.11 : x
  2. Step 2: Convert to fraction form
    6,376.55/8,799.82 = 3,859.11/x
  3. Step 3: Cross multiply
    6,376.55x = 8,799.82 × 3,859.11
  4. Step 4: Simplify right side
    6,376.55x = 33,959,463.71
  5. Step 5: Solve for x
    x = 33,959,463.71/6,376.55
  6. Step 6: Final answer
    x = 5,325.68

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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.