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Finding the Fourth Proportional to 3,763.76, 5,193.86 and 2,191.82

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Solution

The fourth proportional to 3,763.76, 5,193.86 and 2,191.82 is: 3,024.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,763.76 : 5,193.86 = 2,191.82 : x
  2. Step 2: Convert to fraction form
    3,763.76/5,193.86 = 2,191.82/x
  3. Step 3: Cross multiply
    3,763.76x = 5,193.86 × 2,191.82
  4. Step 4: Simplify right side
    3,763.76x = 11,383,969.30
  5. Step 5: Solve for x
    x = 11,383,969.30/3,763.76
  6. Step 6: Final answer
    x = 3,024.63

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1.5x scale

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.