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Finding the Fourth Proportional to 6,671.28, 9,993.90 and 5,746.80

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Solution

The fourth proportional to 6,671.28, 9,993.90 and 5,746.80 is: 8,608.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,671.28 : 9,993.90 = 5,746.80 : x
  2. Step 2: Convert to fraction form
    6,671.28/9,993.90 = 5,746.80/x
  3. Step 3: Cross multiply
    6,671.28x = 9,993.90 × 5,746.80
  4. Step 4: Simplify right side
    6,671.28x = 57,432,944.52
  5. Step 5: Solve for x
    x = 57,432,944.52/6,671.28
  6. Step 6: Final answer
    x = 8,608.98

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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.