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Finding the Fourth Proportional to 50,687.78, 69,946.32 and 28,025.41

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Solution

The fourth proportional to 50,687.78, 69,946.32 and 28,025.41 is: 38,673.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,687.78 : 69,946.32 = 28,025.41 : x
  2. Step 2: Convert to fraction form
    50,687.78/69,946.32 = 28,025.41/x
  3. Step 3: Cross multiply
    50,687.78x = 69,946.32 × 28,025.41
  4. Step 4: Simplify right side
    50,687.78x = 1,960,274,278.33
  5. Step 5: Solve for x
    x = 1,960,274,278.33/50,687.78
  6. Step 6: Final answer
    x = 38,673.51

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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.