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Finding the Fourth Proportional to 18,348.99, 27,519.35 and 8,482.88

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Solution

The fourth proportional to 18,348.99, 27,519.35 and 8,482.88 is: 12,722.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,348.99 : 27,519.35 = 8,482.88 : x
  2. Step 2: Convert to fraction form
    18,348.99/27,519.35 = 8,482.88/x
  3. Step 3: Cross multiply
    18,348.99x = 27,519.35 × 8,482.88
  4. Step 4: Simplify right side
    18,348.99x = 233,443,163.72
  5. Step 5: Solve for x
    x = 233,443,163.72/18,348.99
  6. Step 6: Final answer
    x = 12,722.40

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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.