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Finding the Fourth Proportional to 18,313.67, 27,468.05 and 5,167.10

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Solution

The fourth proportional to 18,313.67, 27,468.05 and 5,167.10 is: 7,749.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,313.67 : 27,468.05 = 5,167.10 : x
  2. Step 2: Convert to fraction form
    18,313.67/27,468.05 = 5,167.10/x
  3. Step 3: Cross multiply
    18,313.67x = 27,468.05 × 5,167.10
  4. Step 4: Simplify right side
    18,313.67x = 141,929,997.98
  5. Step 5: Solve for x
    x = 141,929,997.98/18,313.67
  6. Step 6: Final answer
    x = 7,749.95

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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.