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Finding the Fourth Proportional to 50,040.96, 69,046.92 and 28,530.30

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Solution

The fourth proportional to 50,040.96, 69,046.92 and 28,530.30 is: 39,366.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,040.96 : 69,046.92 = 28,530.30 : x
  2. Step 2: Convert to fraction form
    50,040.96/69,046.92 = 28,530.30/x
  3. Step 3: Cross multiply
    50,040.96x = 69,046.92 × 28,530.30
  4. Step 4: Simplify right side
    50,040.96x = 1,969,929,341.68
  5. Step 5: Solve for x
    x = 1,969,929,341.68/50,040.96
  6. Step 6: Final answer
    x = 39,366.34

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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.