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Finding the Fourth Proportional to 17,917.92, 26,865.95 and 7,384.68

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Solution

The fourth proportional to 17,917.92, 26,865.95 and 7,384.68 is: 11,072.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,917.92 : 26,865.95 = 7,384.68 : x
  2. Step 2: Convert to fraction form
    17,917.92/26,865.95 = 7,384.68/x
  3. Step 3: Cross multiply
    17,917.92x = 26,865.95 × 7,384.68
  4. Step 4: Simplify right side
    17,917.92x = 198,396,406.72
  5. Step 5: Solve for x
    x = 198,396,406.72/17,917.92
  6. Step 6: Final answer
    x = 11,072.51

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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.