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Finding the Fourth Proportional to 6,533.20, 9,778.20 and 5,064.40

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Solution

The fourth proportional to 6,533.20, 9,778.20 and 5,064.40 is: 7,579.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,533.20 : 9,778.20 = 5,064.40 : x
  2. Step 2: Convert to fraction form
    6,533.20/9,778.20 = 5,064.40/x
  3. Step 3: Cross multiply
    6,533.20x = 9,778.20 × 5,064.40
  4. Step 4: Simplify right side
    6,533.20x = 49,520,716.08
  5. Step 5: Solve for x
    x = 49,520,716.08/6,533.20
  6. Step 6: Final answer
    x = 7,579.86

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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.