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Finding the Fourth Proportional to 18,614.91, 27,895.86 and 9,245.75

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Solution

The fourth proportional to 18,614.91, 27,895.86 and 9,245.75 is: 13,855.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,614.91 : 27,895.86 = 9,245.75 : x
  2. Step 2: Convert to fraction form
    18,614.91/27,895.86 = 9,245.75/x
  3. Step 3: Cross multiply
    18,614.91x = 27,895.86 × 9,245.75
  4. Step 4: Simplify right side
    18,614.91x = 257,918,008.12
  5. Step 5: Solve for x
    x = 257,918,008.12/18,614.91
  6. Step 6: Final answer
    x = 13,855.45

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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.