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Finding the Fourth Proportional to 5,043.88, 6,959.82 and 2,805.82

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Solution

The fourth proportional to 5,043.88, 6,959.82 and 2,805.82 is: 3,871.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,043.88 : 6,959.82 = 2,805.82 : x
  2. Step 2: Convert to fraction form
    5,043.88/6,959.82 = 2,805.82/x
  3. Step 3: Cross multiply
    5,043.88x = 6,959.82 × 2,805.82
  4. Step 4: Simplify right side
    5,043.88x = 19,528,002.15
  5. Step 5: Solve for x
    x = 19,528,002.15/5,043.88
  6. Step 6: Final answer
    x = 3,871.62

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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.