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Finding the Fourth Proportional to 35,955.94, 49,620.90 and 20,040.51

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Solution

The fourth proportional to 35,955.94, 49,620.90 and 20,040.51 is: 27,656.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,955.94 : 49,620.90 = 20,040.51 : x
  2. Step 2: Convert to fraction form
    35,955.94/49,620.90 = 20,040.51/x
  3. Step 3: Cross multiply
    35,955.94x = 49,620.90 × 20,040.51
  4. Step 4: Simplify right side
    35,955.94x = 994,428,142.66
  5. Step 5: Solve for x
    x = 994,428,142.66/35,955.94
  6. Step 6: Final answer
    x = 27,656.85

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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.