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Finding the Fourth Proportional to 50,463.42, 69,642.63 and 28,107.42

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Solution

The fourth proportional to 50,463.42, 69,642.63 and 28,107.42 is: 38,789.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,463.42 : 69,642.63 = 28,107.42 : x
  2. Step 2: Convert to fraction form
    50,463.42/69,642.63 = 28,107.42/x
  3. Step 3: Cross multiply
    50,463.42x = 69,642.63 × 28,107.42
  4. Step 4: Simplify right side
    50,463.42x = 1,957,474,651.31
  5. Step 5: Solve for x
    x = 1,957,474,651.31/50,463.42
  6. Step 6: Final answer
    x = 38,789.97

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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.