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Finding the Fourth Proportional to 13,524.56, 20,287.56 and 4,171.01

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Solution

The fourth proportional to 13,524.56, 20,287.56 and 4,171.01 is: 6,256.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,524.56 : 20,287.56 = 4,171.01 : x
  2. Step 2: Convert to fraction form
    13,524.56/20,287.56 = 4,171.01/x
  3. Step 3: Cross multiply
    13,524.56x = 20,287.56 × 4,171.01
  4. Step 4: Simplify right side
    13,524.56x = 84,619,615.64
  5. Step 5: Solve for x
    x = 84,619,615.64/13,524.56
  6. Step 6: Final answer
    x = 6,256.74

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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.