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Finding the Fourth Proportional to 5,197.26, 7,798.16 and 2,731.50

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Solution

The fourth proportional to 5,197.26, 7,798.16 and 2,731.50 is: 4,098.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,197.26 : 7,798.16 = 2,731.50 : x
  2. Step 2: Convert to fraction form
    5,197.26/7,798.16 = 2,731.50/x
  3. Step 3: Cross multiply
    5,197.26x = 7,798.16 × 2,731.50
  4. Step 4: Simplify right side
    5,197.26x = 21,300,674.04
  5. Step 5: Solve for x
    x = 21,300,674.04/5,197.26
  6. Step 6: Final answer
    x = 4,098.44

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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.