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Finding the Fourth Proportional to 18,374.56, 27,561.60 and 4,523.68

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Solution

The fourth proportional to 18,374.56, 27,561.60 and 4,523.68 is: 6,785.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,374.56 : 27,561.60 = 4,523.68 : x
  2. Step 2: Convert to fraction form
    18,374.56/27,561.60 = 4,523.68/x
  3. Step 3: Cross multiply
    18,374.56x = 27,561.60 × 4,523.68
  4. Step 4: Simplify right side
    18,374.56x = 124,679,858.69
  5. Step 5: Solve for x
    x = 124,679,858.69/18,374.56
  6. Step 6: Final answer
    x = 6,785.46

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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.