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Finding the Fourth Proportional to 17,871.23, 24,660.67 and 9,913.43

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Solution

The fourth proportional to 17,871.23, 24,660.67 and 9,913.43 is: 13,679.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,871.23 : 24,660.67 = 9,913.43 : x
  2. Step 2: Convert to fraction form
    17,871.23/24,660.67 = 9,913.43/x
  3. Step 3: Cross multiply
    17,871.23x = 24,660.67 × 9,913.43
  4. Step 4: Simplify right side
    17,871.23x = 244,471,825.80
  5. Step 5: Solve for x
    x = 244,471,825.80/17,871.23
  6. Step 6: Final answer
    x = 13,679.63

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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.