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Finding the Fourth Proportional to 18,152.96, 27,216.72 and 9,270.99

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Solution

The fourth proportional to 18,152.96, 27,216.72 and 9,270.99 is: 13,899.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,152.96 : 27,216.72 = 9,270.99 : x
  2. Step 2: Convert to fraction form
    18,152.96/27,216.72 = 9,270.99/x
  3. Step 3: Cross multiply
    18,152.96x = 27,216.72 × 9,270.99
  4. Step 4: Simplify right side
    18,152.96x = 252,325,938.95
  5. Step 5: Solve for x
    x = 252,325,938.95/18,152.96
  6. Step 6: Final answer
    x = 13,899.99

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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.