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Finding the Fourth Proportional to 12,392.91, 18,584.49 and 4,995.99

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Solution

The fourth proportional to 12,392.91, 18,584.49 and 4,995.99 is: 7,492.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,392.91 : 18,584.49 = 4,995.99 : x
  2. Step 2: Convert to fraction form
    12,392.91/18,584.49 = 4,995.99/x
  3. Step 3: Cross multiply
    12,392.91x = 18,584.49 × 4,995.99
  4. Step 4: Simplify right side
    12,392.91x = 92,847,926.20
  5. Step 5: Solve for x
    x = 92,847,926.20/12,392.91
  6. Step 6: Final answer
    x = 7,492.02

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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.