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Finding the Fourth Proportional to 50,187.79, 69,251.52 and 28,673.79

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Solution

The fourth proportional to 50,187.79, 69,251.52 and 28,673.79 is: 39,565.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,187.79 : 69,251.52 = 28,673.79 : x
  2. Step 2: Convert to fraction form
    50,187.79/69,251.52 = 28,673.79/x
  3. Step 3: Cross multiply
    50,187.79x = 69,251.52 × 28,673.79
  4. Step 4: Simplify right side
    50,187.79x = 1,985,703,541.66
  5. Step 5: Solve for x
    x = 1,985,703,541.66/50,187.79
  6. Step 6: Final answer
    x = 39,565.47

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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.