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Finding the Fourth Proportional to 28,823.52, 43,103.52 and 20,952.48

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Solution

The fourth proportional to 28,823.52, 43,103.52 and 20,952.48 is: 31,332.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,823.52 : 43,103.52 = 20,952.48 : x
  2. Step 2: Convert to fraction form
    28,823.52/43,103.52 = 20,952.48/x
  3. Step 3: Cross multiply
    28,823.52x = 43,103.52 × 20,952.48
  4. Step 4: Simplify right side
    28,823.52x = 903,125,640.73
  5. Step 5: Solve for x
    x = 903,125,640.73/28,823.52
  6. Step 6: Final answer
    x = 31,332.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.