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Finding the Fourth Proportional to 3,176.43, 4,764.52 and 836.43

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Solution

The fourth proportional to 3,176.43, 4,764.52 and 836.43 is: 1,254.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,176.43 : 4,764.52 = 836.43 : x
  2. Step 2: Convert to fraction form
    3,176.43/4,764.52 = 836.43/x
  3. Step 3: Cross multiply
    3,176.43x = 4,764.52 × 836.43
  4. Step 4: Simplify right side
    3,176.43x = 3,985,187.46
  5. Step 5: Solve for x
    x = 3,985,187.46/3,176.43
  6. Step 6: Final answer
    x = 1,254.61

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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.