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Finding the Fourth Proportional to 65,286.86, 97,912.58 and 17,890.52

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Solution

The fourth proportional to 65,286.86, 97,912.58 and 17,890.52 is: 26,830.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,286.86 : 97,912.58 = 17,890.52 : x
  2. Step 2: Convert to fraction form
    65,286.86/97,912.58 = 17,890.52/x
  3. Step 3: Cross multiply
    65,286.86x = 97,912.58 × 17,890.52
  4. Step 4: Simplify right side
    65,286.86x = 1,751,706,391.73
  5. Step 5: Solve for x
    x = 1,751,706,391.73/65,286.86
  6. Step 6: Final answer
    x = 26,830.92

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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.