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Finding the Fourth Proportional to 16,961.76, 23,405.04 and 9,408.03

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Solution

The fourth proportional to 16,961.76, 23,405.04 and 9,408.03 is: 12,981.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,961.76 : 23,405.04 = 9,408.03 : x
  2. Step 2: Convert to fraction form
    16,961.76/23,405.04 = 9,408.03/x
  3. Step 3: Cross multiply
    16,961.76x = 23,405.04 × 9,408.03
  4. Step 4: Simplify right side
    16,961.76x = 220,195,318.47
  5. Step 5: Solve for x
    x = 220,195,318.47/16,961.76
  6. Step 6: Final answer
    x = 12,981.87

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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.