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Finding the Fourth Proportional to 67,993.66, 93,837.18 and 39,708.46

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Solution

The fourth proportional to 67,993.66, 93,837.18 and 39,708.46 is: 54,801.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,993.66 : 93,837.18 = 39,708.46 : x
  2. Step 2: Convert to fraction form
    67,993.66/93,837.18 = 39,708.46/x
  3. Step 3: Cross multiply
    67,993.66x = 93,837.18 × 39,708.46
  4. Step 4: Simplify right side
    67,993.66x = 3,726,129,908.54
  5. Step 5: Solve for x
    x = 3,726,129,908.54/67,993.66
  6. Step 6: Final answer
    x = 54,801.14

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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.