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Finding the Fourth Proportional to 5,759.40, 8,631.54 and 4,454.76

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Solution

The fourth proportional to 5,759.40, 8,631.54 and 4,454.76 is: 6,676.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,759.40 : 8,631.54 = 4,454.76 : x
  2. Step 2: Convert to fraction form
    5,759.40/8,631.54 = 4,454.76/x
  3. Step 3: Cross multiply
    5,759.40x = 8,631.54 × 4,454.76
  4. Step 4: Simplify right side
    5,759.40x = 38,451,439.13
  5. Step 5: Solve for x
    x = 38,451,439.13/5,759.40
  6. Step 6: Final answer
    x = 6,676.29

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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.