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Finding the Fourth Proportional to 27,328.64, 40,992.96 and 15,633.66

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Solution

The fourth proportional to 27,328.64, 40,992.96 and 15,633.66 is: 23,450.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,328.64 : 40,992.96 = 15,633.66 : x
  2. Step 2: Convert to fraction form
    27,328.64/40,992.96 = 15,633.66/x
  3. Step 3: Cross multiply
    27,328.64x = 40,992.96 × 15,633.66
  4. Step 4: Simplify right side
    27,328.64x = 640,869,896.55
  5. Step 5: Solve for x
    x = 640,869,896.55/27,328.64
  6. Step 6: Final answer
    x = 23,450.49

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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.