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Finding the Fourth Proportional to 17,908.22, 24,713.79 and 9,951.20

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Solution

The fourth proportional to 17,908.22, 24,713.79 and 9,951.20 is: 13,732.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,908.22 : 24,713.79 = 9,951.20 : x
  2. Step 2: Convert to fraction form
    17,908.22/24,713.79 = 9,951.20/x
  3. Step 3: Cross multiply
    17,908.22x = 24,713.79 × 9,951.20
  4. Step 4: Simplify right side
    17,908.22x = 245,931,867.05
  5. Step 5: Solve for x
    x = 245,931,867.05/17,908.22
  6. Step 6: Final answer
    x = 13,732.90

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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.