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Finding the Fourth Proportional to 68,599.48, 102,888.82 and 18,683.51

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Solution

The fourth proportional to 68,599.48, 102,888.82 and 18,683.51 is: 28,022.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,599.48 : 102,888.82 = 18,683.51 : x
  2. Step 2: Convert to fraction form
    68,599.48/102,888.82 = 18,683.51/x
  3. Step 3: Cross multiply
    68,599.48x = 102,888.82 × 18,683.51
  4. Step 4: Simplify right side
    68,599.48x = 1,922,324,203.94
  5. Step 5: Solve for x
    x = 1,922,324,203.94/68,599.48
  6. Step 6: Final answer
    x = 28,022.43

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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.