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Finding the Fourth Proportional to 43,606.25, 65,419.13 and 15,904.25

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Solution

The fourth proportional to 43,606.25, 65,419.13 and 15,904.25 is: 23,859.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,606.25 : 65,419.13 = 15,904.25 : x
  2. Step 2: Convert to fraction form
    43,606.25/65,419.13 = 15,904.25/x
  3. Step 3: Cross multiply
    43,606.25x = 65,419.13 × 15,904.25
  4. Step 4: Simplify right side
    43,606.25x = 1,040,442,198.30
  5. Step 5: Solve for x
    x = 1,040,442,198.30/43,606.25
  6. Step 6: Final answer
    x = 23,859.93

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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.