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Finding the Fourth Proportional to 10,900.17, 16,351.11 and 3,881.70

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Solution

The fourth proportional to 10,900.17, 16,351.11 and 3,881.70 is: 5,822.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,900.17 : 16,351.11 = 3,881.70 : x
  2. Step 2: Convert to fraction form
    10,900.17/16,351.11 = 3,881.70/x
  3. Step 3: Cross multiply
    10,900.17x = 16,351.11 × 3,881.70
  4. Step 4: Simplify right side
    10,900.17x = 63,470,103.69
  5. Step 5: Solve for x
    x = 63,470,103.69/10,900.17
  6. Step 6: Final answer
    x = 5,822.85

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1.5x scale

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.