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Finding the Fourth Proportional to 50,826.28, 70,133.70 and 28,470.28

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Solution

The fourth proportional to 50,826.28, 70,133.70 and 28,470.28 is: 39,285.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,826.28 : 70,133.70 = 28,470.28 : x
  2. Step 2: Convert to fraction form
    50,826.28/70,133.70 = 28,470.28/x
  3. Step 3: Cross multiply
    50,826.28x = 70,133.70 × 28,470.28
  4. Step 4: Simplify right side
    50,826.28x = 1,996,726,076.44
  5. Step 5: Solve for x
    x = 1,996,726,076.44/50,826.28
  6. Step 6: Final answer
    x = 39,285.31

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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.