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Finding the Fourth Proportional to 28,836.17, 39,793.92 and 16,260.92

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Solution

The fourth proportional to 28,836.17, 39,793.92 and 16,260.92 is: 22,440.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,836.17 : 39,793.92 = 16,260.92 : x
  2. Step 2: Convert to fraction form
    28,836.17/39,793.92 = 16,260.92/x
  3. Step 3: Cross multiply
    28,836.17x = 39,793.92 × 16,260.92
  4. Step 4: Simplify right side
    28,836.17x = 647,085,749.61
  5. Step 5: Solve for x
    x = 647,085,749.61/28,836.17
  6. Step 6: Final answer
    x = 22,440.07

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1.5x scale

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.