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Finding the Fourth Proportional to 16,640.07, 24,947.79 and 7,864.74

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Solution

The fourth proportional to 16,640.07, 24,947.79 and 7,864.74 is: 11,791.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,640.07 : 24,947.79 = 7,864.74 : x
  2. Step 2: Convert to fraction form
    16,640.07/24,947.79 = 7,864.74/x
  3. Step 3: Cross multiply
    16,640.07x = 24,947.79 × 7,864.74
  4. Step 4: Simplify right side
    16,640.07x = 196,207,881.92
  5. Step 5: Solve for x
    x = 196,207,881.92/16,640.07
  6. Step 6: Final answer
    x = 11,791.29

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1.5x scale

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.