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Finding the Fourth Proportional to 6,787.20, 10,201.20 and 5,624.88

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Solution

The fourth proportional to 6,787.20, 10,201.20 and 5,624.88 is: 8,454.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,787.20 : 10,201.20 = 5,624.88 : x
  2. Step 2: Convert to fraction form
    6,787.20/10,201.20 = 5,624.88/x
  3. Step 3: Cross multiply
    6,787.20x = 10,201.20 × 5,624.88
  4. Step 4: Simplify right side
    6,787.20x = 57,380,525.86
  5. Step 5: Solve for x
    x = 57,380,525.86/6,787.20
  6. Step 6: Final answer
    x = 8,454.23

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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.