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Finding the Fourth Proportional to 12,496.89, 18,739.83 and 6,652.11

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Solution

The fourth proportional to 12,496.89, 18,739.83 and 6,652.11 is: 9,975.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,496.89 : 18,739.83 = 6,652.11 : x
  2. Step 2: Convert to fraction form
    12,496.89/18,739.83 = 6,652.11/x
  3. Step 3: Cross multiply
    12,496.89x = 18,739.83 × 6,652.11
  4. Step 4: Simplify right side
    12,496.89x = 124,659,410.54
  5. Step 5: Solve for x
    x = 124,659,410.54/12,496.89
  6. Step 6: Final answer
    x = 9,975.23

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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.