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Finding the Fourth Proportional to 26,894.80, 40,363.08 and 18,632.71

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Solution

The fourth proportional to 26,894.80, 40,363.08 and 18,632.71 is: 27,963.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,894.80 : 40,363.08 = 18,632.71 : x
  2. Step 2: Convert to fraction form
    26,894.80/40,363.08 = 18,632.71/x
  3. Step 3: Cross multiply
    26,894.80x = 40,363.08 × 18,632.71
  4. Step 4: Simplify right side
    26,894.80x = 752,073,564.35
  5. Step 5: Solve for x
    x = 752,073,564.35/26,894.80
  6. Step 6: Final answer
    x = 27,963.53

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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.