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Finding the Fourth Proportional to 7,331.80, 11,005.80 and 4,561.60

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Solution

The fourth proportional to 7,331.80, 11,005.80 and 4,561.60 is: 6,847.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,331.80 : 11,005.80 = 4,561.60 : x
  2. Step 2: Convert to fraction form
    7,331.80/11,005.80 = 4,561.60/x
  3. Step 3: Cross multiply
    7,331.80x = 11,005.80 × 4,561.60
  4. Step 4: Simplify right side
    7,331.80x = 50,204,057.28
  5. Step 5: Solve for x
    x = 50,204,057.28/7,331.80
  6. Step 6: Final answer
    x = 6,847.44

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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.