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Finding the Fourth Proportional to 5,591.44, 8,385.72 and 2,512.72

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Solution

The fourth proportional to 5,591.44, 8,385.72 and 2,512.72 is: 3,768.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,591.44 : 8,385.72 = 2,512.72 : x
  2. Step 2: Convert to fraction form
    5,591.44/8,385.72 = 2,512.72/x
  3. Step 3: Cross multiply
    5,591.44x = 8,385.72 × 2,512.72
  4. Step 4: Simplify right side
    5,591.44x = 21,070,966.36
  5. Step 5: Solve for x
    x = 21,070,966.36/5,591.44
  6. Step 6: Final answer
    x = 3,768.43

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1.5x scale

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.