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Finding the Fourth Proportional to 20,561.58, 30,844.54 and 6,523.60

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Solution

The fourth proportional to 20,561.58, 30,844.54 and 6,523.60 is: 9,786.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,561.58 : 30,844.54 = 6,523.60 : x
  2. Step 2: Convert to fraction form
    20,561.58/30,844.54 = 6,523.60/x
  3. Step 3: Cross multiply
    20,561.58x = 30,844.54 × 6,523.60
  4. Step 4: Simplify right side
    20,561.58x = 201,217,441.14
  5. Step 5: Solve for x
    x = 201,217,441.14/20,561.58
  6. Step 6: Final answer
    x = 9,786.09

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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.