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Finding the Third Proportional to 32,257.50 and 68,430

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Solution

The third proportional to 32,257.50 and 68,430 is: 145,165.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,257.50 : 68,430 = 68,430 : x
  2. Step 2: Convert to fraction form
    32,257.50/68,430 = 68,430/x
  3. Step 3: Cross multiply
    32,257.50x = 68,430 × 68,430
  4. Step 4: Simplify right side
    32,257.50x = 4,682,664,900
  5. Step 5: Solve for x
    x = 4,682,664,900/32,257.50
  6. Step 6: Final answer
    x = 145,165.15

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.