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Finding the Fourth Proportional to 1,163.97, 1,743.63 and 700.35

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Solution

The fourth proportional to 1,163.97, 1,743.63 and 700.35 is: 1,049.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,163.97 : 1,743.63 = 700.35 : x
  2. Step 2: Convert to fraction form
    1,163.97/1,743.63 = 700.35/x
  3. Step 3: Cross multiply
    1,163.97x = 1,743.63 × 700.35
  4. Step 4: Simplify right side
    1,163.97x = 1,221,142.11
  5. Step 5: Solve for x
    x = 1,221,142.11/1,163.97
  6. Step 6: Final answer
    x = 1,049.12

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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.