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Finding the Fourth Proportional to 5,871.88, 8,807.82 and 3,135.88

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Solution

The fourth proportional to 5,871.88, 8,807.82 and 3,135.88 is: 4,703.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,871.88 : 8,807.82 = 3,135.88 : x
  2. Step 2: Convert to fraction form
    5,871.88/8,807.82 = 3,135.88/x
  3. Step 3: Cross multiply
    5,871.88x = 8,807.82 × 3,135.88
  4. Step 4: Simplify right side
    5,871.88x = 27,620,266.58
  5. Step 5: Solve for x
    x = 27,620,266.58/5,871.88
  6. Step 6: Final answer
    x = 4,703.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.