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Finding the Fourth Proportional to 35,900.84, 49,542.30 and 19,984.95

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Solution

The fourth proportional to 35,900.84, 49,542.30 and 19,984.95 is: 27,578.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,900.84 : 49,542.30 = 19,984.95 : x
  2. Step 2: Convert to fraction form
    35,900.84/49,542.30 = 19,984.95/x
  3. Step 3: Cross multiply
    35,900.84x = 49,542.30 × 19,984.95
  4. Step 4: Simplify right side
    35,900.84x = 990,100,388.39
  5. Step 5: Solve for x
    x = 990,100,388.39/35,900.84
  6. Step 6: Final answer
    x = 27,578.75

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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.