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Finding the Fourth Proportional to 5,013.70, 6,919.50 and 2,917.82

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Solution

The fourth proportional to 5,013.70, 6,919.50 and 2,917.82 is: 4,026.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,013.70 : 6,919.50 = 2,917.82 : x
  2. Step 2: Convert to fraction form
    5,013.70/6,919.50 = 2,917.82/x
  3. Step 3: Cross multiply
    5,013.70x = 6,919.50 × 2,917.82
  4. Step 4: Simplify right side
    5,013.70x = 20,189,855.49
  5. Step 5: Solve for x
    x = 20,189,855.49/5,013.70
  6. Step 6: Final answer
    x = 4,026.94

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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.