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Finding the Fourth Proportional to 79,072.70, 118,609.05 and 22,912.85

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Solution

The fourth proportional to 79,072.70, 118,609.05 and 22,912.85 is: 34,369.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,072.70 : 118,609.05 = 22,912.85 : x
  2. Step 2: Convert to fraction form
    79,072.70/118,609.05 = 22,912.85/x
  3. Step 3: Cross multiply
    79,072.70x = 118,609.05 × 22,912.85
  4. Step 4: Simplify right side
    79,072.70x = 2,717,671,371.29
  5. Step 5: Solve for x
    x = 2,717,671,371.29/79,072.70
  6. Step 6: Final answer
    x = 34,369.28

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Similar ratio
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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.