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Finding the Fourth Proportional to 65,903.43, 98,855.11 and 15,983.52

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Solution

The fourth proportional to 65,903.43, 98,855.11 and 15,983.52 is: 23,975.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,903.43 : 98,855.11 = 15,983.52 : x
  2. Step 2: Convert to fraction form
    65,903.43/98,855.11 = 15,983.52/x
  3. Step 3: Cross multiply
    65,903.43x = 98,855.11 × 15,983.52
  4. Step 4: Simplify right side
    65,903.43x = 1,580,052,627.79
  5. Step 5: Solve for x
    x = 1,580,052,627.79/65,903.43
  6. Step 6: Final answer
    x = 23,975.27

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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.