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Finding the Fourth Proportional to 5,591.28, 7,698.96 and 4,845.30

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Solution

The fourth proportional to 5,591.28, 7,698.96 and 4,845.30 is: 6,671.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,591.28 : 7,698.96 = 4,845.30 : x
  2. Step 2: Convert to fraction form
    5,591.28/7,698.96 = 4,845.30/x
  3. Step 3: Cross multiply
    5,591.28x = 7,698.96 × 4,845.30
  4. Step 4: Simplify right side
    5,591.28x = 37,303,770.89
  5. Step 5: Solve for x
    x = 37,303,770.89/5,591.28
  6. Step 6: Final answer
    x = 6,671.78

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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.