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Finding the Fourth Proportional to 3,956.09, 5,934.55 and 1,492.99

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Solution

The fourth proportional to 3,956.09, 5,934.55 and 1,492.99 is: 2,239.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,956.09 : 5,934.55 = 1,492.99 : x
  2. Step 2: Convert to fraction form
    3,956.09/5,934.55 = 1,492.99/x
  3. Step 3: Cross multiply
    3,956.09x = 5,934.55 × 1,492.99
  4. Step 4: Simplify right side
    3,956.09x = 8,860,186.67
  5. Step 5: Solve for x
    x = 8,860,186.67/3,956.09
  6. Step 6: Final answer
    x = 2,239.63

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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.