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Finding the Fourth Proportional to 55,009.88, 75,913.83 and 29,859.38

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Solution

The fourth proportional to 55,009.88, 75,913.83 and 29,859.38 is: 41,206.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,009.88 : 75,913.83 = 29,859.38 : x
  2. Step 2: Convert to fraction form
    55,009.88/75,913.83 = 29,859.38/x
  3. Step 3: Cross multiply
    55,009.88x = 75,913.83 × 29,859.38
  4. Step 4: Simplify right side
    55,009.88x = 2,266,739,517.66
  5. Step 5: Solve for x
    x = 2,266,739,517.66/55,009.88
  6. Step 6: Final answer
    x = 41,206.05

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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.