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Finding the Third Proportional to 57,259.50 and 85,626

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Solution

The third proportional to 57,259.50 and 85,626 is: 128,045.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,259.50 : 85,626 = 85,626 : x
  2. Step 2: Convert to fraction form
    57,259.50/85,626 = 85,626/x
  3. Step 3: Cross multiply
    57,259.50x = 85,626 × 85,626
  4. Step 4: Simplify right side
    57,259.50x = 7,331,811,876
  5. Step 5: Solve for x
    x = 7,331,811,876/57,259.50
  6. Step 6: Final answer
    x = 128,045.34

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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.