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Finding the Fourth Proportional to 4,986.18, 7,479.27 and 1,523.43

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Solution

The fourth proportional to 4,986.18, 7,479.27 and 1,523.43 is: 2,285.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,986.18 : 7,479.27 = 1,523.43 : x
  2. Step 2: Convert to fraction form
    4,986.18/7,479.27 = 1,523.43/x
  3. Step 3: Cross multiply
    4,986.18x = 7,479.27 × 1,523.43
  4. Step 4: Simplify right side
    4,986.18x = 11,394,144.30
  5. Step 5: Solve for x
    x = 11,394,144.30/4,986.18
  6. Step 6: Final answer
    x = 2,285.15

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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.