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Finding the Fourth Proportional to 49,469.52, 68,269.68 and 28,248.40

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Solution

The fourth proportional to 49,469.52, 68,269.68 and 28,248.40 is: 38,983.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,469.52 : 68,269.68 = 28,248.40 : x
  2. Step 2: Convert to fraction form
    49,469.52/68,269.68 = 28,248.40/x
  3. Step 3: Cross multiply
    49,469.52x = 68,269.68 × 28,248.40
  4. Step 4: Simplify right side
    49,469.52x = 1,928,509,228.51
  5. Step 5: Solve for x
    x = 1,928,509,228.51/49,469.52
  6. Step 6: Final answer
    x = 38,983.79

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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.