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Finding the Fourth Proportional to 17,791.08, 26,687.10 and 4,643.16

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Solution

The fourth proportional to 17,791.08, 26,687.10 and 4,643.16 is: 6,964.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,791.08 : 26,687.10 = 4,643.16 : x
  2. Step 2: Convert to fraction form
    17,791.08/26,687.10 = 4,643.16/x
  3. Step 3: Cross multiply
    17,791.08x = 26,687.10 × 4,643.16
  4. Step 4: Simplify right side
    17,791.08x = 123,912,475.24
  5. Step 5: Solve for x
    x = 123,912,475.24/17,791.08
  6. Step 6: Final answer
    x = 6,964.87

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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.