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Finding the Fourth Proportional to 18,313.21, 27,425.02 and 16,538.30

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Solution

The fourth proportional to 18,313.21, 27,425.02 and 16,538.30 is: 24,766.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,313.21 : 27,425.02 = 16,538.30 : x
  2. Step 2: Convert to fraction form
    18,313.21/27,425.02 = 16,538.30/x
  3. Step 3: Cross multiply
    18,313.21x = 27,425.02 × 16,538.30
  4. Step 4: Simplify right side
    18,313.21x = 453,563,098.36
  5. Step 5: Solve for x
    x = 453,563,098.36/18,313.21
  6. Step 6: Final answer
    x = 24,766.99

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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.