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Finding the Fourth Proportional to 43,959.53, 65,931.64 and 12,362.08

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Solution

The fourth proportional to 43,959.53, 65,931.64 and 12,362.08 is: 18,540.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,959.53 : 65,931.64 = 12,362.08 : x
  2. Step 2: Convert to fraction form
    43,959.53/65,931.64 = 12,362.08/x
  3. Step 3: Cross multiply
    43,959.53x = 65,931.64 × 12,362.08
  4. Step 4: Simplify right side
    43,959.53x = 815,052,208.21
  5. Step 5: Solve for x
    x = 815,052,208.21/43,959.53
  6. Step 6: Final answer
    x = 18,540.97

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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.