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Finding the Fourth Proportional to 20,035.94, 30,055.91 and 6,886.58

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Solution

The fourth proportional to 20,035.94, 30,055.91 and 6,886.58 is: 10,330.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,035.94 : 30,055.91 = 6,886.58 : x
  2. Step 2: Convert to fraction form
    20,035.94/30,055.91 = 6,886.58/x
  3. Step 3: Cross multiply
    20,035.94x = 30,055.91 × 6,886.58
  4. Step 4: Simplify right side
    20,035.94x = 206,982,243.98
  5. Step 5: Solve for x
    x = 206,982,243.98/20,035.94
  6. Step 6: Final answer
    x = 10,330.55

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