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Finding the Fourth Proportional to 35,995.88, 49,679.78 and 21,845.99

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Solution

The fourth proportional to 35,995.88, 49,679.78 and 21,845.99 is: 30,150.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,995.88 : 49,679.78 = 21,845.99 : x
  2. Step 2: Convert to fraction form
    35,995.88/49,679.78 = 21,845.99/x
  3. Step 3: Cross multiply
    35,995.88x = 49,679.78 × 21,845.99
  4. Step 4: Simplify right side
    35,995.88x = 1,085,303,619.45
  5. Step 5: Solve for x
    x = 1,085,303,619.45/35,995.88
  6. Step 6: Final answer
    x = 30,150.78

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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.