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Finding the Fourth Proportional to 7,192.61, 10,791.50 and 2,513.31

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Solution

The fourth proportional to 7,192.61, 10,791.50 and 2,513.31 is: 3,770.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,192.61 : 10,791.50 = 2,513.31 : x
  2. Step 2: Convert to fraction form
    7,192.61/10,791.50 = 2,513.31/x
  3. Step 3: Cross multiply
    7,192.61x = 10,791.50 × 2,513.31
  4. Step 4: Simplify right side
    7,192.61x = 27,122,384.87
  5. Step 5: Solve for x
    x = 27,122,384.87/7,192.61
  6. Step 6: Final answer
    x = 3,770.87

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1.5x scale

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.