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Finding the Fourth Proportional to 6,355.80, 9,533.70 and 2,660.58

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Solution

The fourth proportional to 6,355.80, 9,533.70 and 2,660.58 is: 3,990.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,355.80 : 9,533.70 = 2,660.58 : x
  2. Step 2: Convert to fraction form
    6,355.80/9,533.70 = 2,660.58/x
  3. Step 3: Cross multiply
    6,355.80x = 9,533.70 × 2,660.58
  4. Step 4: Simplify right side
    6,355.80x = 25,365,171.55
  5. Step 5: Solve for x
    x = 25,365,171.55/6,355.80
  6. Step 6: Final answer
    x = 3,990.87

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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.