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Finding the Fourth Proportional to 45,811.70, 68,729.70 and 16,226.45

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Solution

The fourth proportional to 45,811.70, 68,729.70 and 16,226.45 is: 24,343.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,811.70 : 68,729.70 = 16,226.45 : x
  2. Step 2: Convert to fraction form
    45,811.70/68,729.70 = 16,226.45/x
  3. Step 3: Cross multiply
    45,811.70x = 68,729.70 × 16,226.45
  4. Step 4: Simplify right side
    45,811.70x = 1,115,239,040.57
  5. Step 5: Solve for x
    x = 1,115,239,040.57/45,811.70
  6. Step 6: Final answer
    x = 24,343.98

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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.