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Finding the Fourth Proportional to 83,696.36, 125,544.36 and 21,366.86

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Solution

The fourth proportional to 83,696.36, 125,544.36 and 21,366.86 is: 32,050.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,696.36 : 125,544.36 = 21,366.86 : x
  2. Step 2: Convert to fraction form
    83,696.36/125,544.36 = 21,366.86/x
  3. Step 3: Cross multiply
    83,696.36x = 125,544.36 × 21,366.86
  4. Step 4: Simplify right side
    83,696.36x = 2,682,488,763.91
  5. Step 5: Solve for x
    x = 2,682,488,763.91/83,696.36
  6. Step 6: Final answer
    x = 32,050.24

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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.