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Finding the Fourth Proportional to 17,163.97, 23,686.64 and 9,711.97

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Solution

The fourth proportional to 17,163.97, 23,686.64 and 9,711.97 is: 13,402.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,163.97 : 23,686.64 = 9,711.97 : x
  2. Step 2: Convert to fraction form
    17,163.97/23,686.64 = 9,711.97/x
  3. Step 3: Cross multiply
    17,163.97x = 23,686.64 × 9,711.97
  4. Step 4: Simplify right side
    17,163.97x = 230,043,937.08
  5. Step 5: Solve for x
    x = 230,043,937.08/17,163.97
  6. Step 6: Final answer
    x = 13,402.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.