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Finding the Fourth Proportional to 36,696.84, 50,641.64 and 19,929.84

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Solution

The fourth proportional to 36,696.84, 50,641.64 and 19,929.84 is: 27,503.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,696.84 : 50,641.64 = 19,929.84 : x
  2. Step 2: Convert to fraction form
    36,696.84/50,641.64 = 19,929.84/x
  3. Step 3: Cross multiply
    36,696.84x = 50,641.64 × 19,929.84
  4. Step 4: Simplify right side
    36,696.84x = 1,009,279,782.54
  5. Step 5: Solve for x
    x = 1,009,279,782.54/36,696.84
  6. Step 6: Final answer
    x = 27,503.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.