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Finding the Fourth Proportional to 60,674.95, 91,028.82 and 18,556.51

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Solution

The fourth proportional to 60,674.95, 91,028.82 and 18,556.51 is: 27,839.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,674.95 : 91,028.82 = 18,556.51 : x
  2. Step 2: Convert to fraction form
    60,674.95/91,028.82 = 18,556.51/x
  3. Step 3: Cross multiply
    60,674.95x = 91,028.82 × 18,556.51
  4. Step 4: Simplify right side
    60,674.95x = 1,689,177,208.62
  5. Step 5: Solve for x
    x = 1,689,177,208.62/60,674.95
  6. Step 6: Final answer
    x = 27,839.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.