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Finding the Fourth Proportional to 3,508.55, 4,841.79 and 1,936.65

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Solution

The fourth proportional to 3,508.55, 4,841.79 and 1,936.65 is: 2,672.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,508.55 : 4,841.79 = 1,936.65 : x
  2. Step 2: Convert to fraction form
    3,508.55/4,841.79 = 1,936.65/x
  3. Step 3: Cross multiply
    3,508.55x = 4,841.79 × 1,936.65
  4. Step 4: Simplify right side
    3,508.55x = 9,376,827.18
  5. Step 5: Solve for x
    x = 9,376,827.18/3,508.55
  6. Step 6: Final answer
    x = 2,672.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.