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Finding the Fourth Proportional to 3,761.82, 5,191.56 and 3,460.50

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Solution

The fourth proportional to 3,761.82, 5,191.56 and 3,460.50 is: 4,775.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,761.82 : 5,191.56 = 3,460.50 : x
  2. Step 2: Convert to fraction form
    3,761.82/5,191.56 = 3,460.50/x
  3. Step 3: Cross multiply
    3,761.82x = 5,191.56 × 3,460.50
  4. Step 4: Simplify right side
    3,761.82x = 17,965,393.38
  5. Step 5: Solve for x
    x = 17,965,393.38/3,761.82
  6. Step 6: Final answer
    x = 4,775.72

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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.