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Finding the Fourth Proportional to 7,198.55, 10,792.72 and 2,752.47

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Solution

The fourth proportional to 7,198.55, 10,792.72 and 2,752.47 is: 4,126.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,198.55 : 10,792.72 = 2,752.47 : x
  2. Step 2: Convert to fraction form
    7,198.55/10,792.72 = 2,752.47/x
  3. Step 3: Cross multiply
    7,198.55x = 10,792.72 × 2,752.47
  4. Step 4: Simplify right side
    7,198.55x = 29,706,631.14
  5. Step 5: Solve for x
    x = 29,706,631.14/7,198.55
  6. Step 6: Final answer
    x = 4,126.75

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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.