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Finding the Third Proportional to 60,318 and 91,725

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Solution

The third proportional to 60,318 and 91,725 is: 139,485.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,318 : 91,725 = 91,725 : x
  2. Step 2: Convert to fraction form
    60,318/91,725 = 91,725/x
  3. Step 3: Cross multiply
    60,318x = 91,725 × 91,725
  4. Step 4: Simplify right side
    60,318x = 8,413,475,625
  5. Step 5: Solve for x
    x = 8,413,475,625/60,318
  6. Step 6: Final answer
    x = 139,485.32

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.