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Finding the Fourth Proportional to 3,959.12, 5,934.09 and 1,492.36

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Solution

The fourth proportional to 3,959.12, 5,934.09 and 1,492.36 is: 2,236.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,959.12 : 5,934.09 = 1,492.36 : x
  2. Step 2: Convert to fraction form
    3,959.12/5,934.09 = 1,492.36/x
  3. Step 3: Cross multiply
    3,959.12x = 5,934.09 × 1,492.36
  4. Step 4: Simplify right side
    3,959.12x = 8,855,798.55
  5. Step 5: Solve for x
    x = 8,855,798.55/3,959.12
  6. Step 6: Final answer
    x = 2,236.81

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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.