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Finding the Fourth Proportional to 18,525.71, 27,792.86 and 5,377.66

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Solution

The fourth proportional to 18,525.71, 27,792.86 and 5,377.66 is: 8,067.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,525.71 : 27,792.86 = 5,377.66 : x
  2. Step 2: Convert to fraction form
    18,525.71/27,792.86 = 5,377.66/x
  3. Step 3: Cross multiply
    18,525.71x = 27,792.86 × 5,377.66
  4. Step 4: Simplify right side
    18,525.71x = 149,460,455.14
  5. Step 5: Solve for x
    x = 149,460,455.14/18,525.71
  6. Step 6: Final answer
    x = 8,067.73

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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.