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Finding the Fourth Proportional to 50,502.88, 69,694.32 and 28,148.32

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Solution

The fourth proportional to 50,502.88, 69,694.32 and 28,148.32 is: 38,844.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,502.88 : 69,694.32 = 28,148.32 : x
  2. Step 2: Convert to fraction form
    50,502.88/69,694.32 = 28,148.32/x
  3. Step 3: Cross multiply
    50,502.88x = 69,694.32 × 28,148.32
  4. Step 4: Simplify right side
    50,502.88x = 1,961,778,021.54
  5. Step 5: Solve for x
    x = 1,961,778,021.54/50,502.88
  6. Step 6: Final answer
    x = 38,844.87

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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.