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Finding the Fourth Proportional to 50,672.92, 69,930.23 and 28,012.63

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Solution

The fourth proportional to 50,672.92, 69,930.23 and 28,012.63 is: 38,658.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,672.92 : 69,930.23 = 28,012.63 : x
  2. Step 2: Convert to fraction form
    50,672.92/69,930.23 = 28,012.63/x
  3. Step 3: Cross multiply
    50,672.92x = 69,930.23 × 28,012.63
  4. Step 4: Simplify right side
    50,672.92x = 1,958,929,343.92
  5. Step 5: Solve for x
    x = 1,958,929,343.92/50,672.92
  6. Step 6: Final answer
    x = 38,658.31

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Double scale
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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.