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Finding the Fourth Proportional to 3,176.86, 4,764.57 and 1,124.86

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Solution

The fourth proportional to 3,176.86, 4,764.57 and 1,124.86 is: 1,687.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,176.86 : 4,764.57 = 1,124.86 : x
  2. Step 2: Convert to fraction form
    3,176.86/4,764.57 = 1,124.86/x
  3. Step 3: Cross multiply
    3,176.86x = 4,764.57 × 1,124.86
  4. Step 4: Simplify right side
    3,176.86x = 5,359,474.21
  5. Step 5: Solve for x
    x = 5,359,474.21/3,176.86
  6. Step 6: Final answer
    x = 1,687.04

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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.