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Finding the Fourth Proportional to 65,766.21, 98,674.17 and 39,489.27

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Solution

The fourth proportional to 65,766.21, 98,674.17 and 39,489.27 is: 59,248.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,766.21 : 98,674.17 = 39,489.27 : x
  2. Step 2: Convert to fraction form
    65,766.21/98,674.17 = 39,489.27/x
  3. Step 3: Cross multiply
    65,766.21x = 98,674.17 × 39,489.27
  4. Step 4: Simplify right side
    65,766.21x = 3,896,570,941.16
  5. Step 5: Solve for x
    x = 3,896,570,941.16/65,766.21
  6. Step 6: Final answer
    x = 59,248.83

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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.