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Finding the Third Proportional to 7,372.50 and 11,725

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Solution

The third proportional to 7,372.50 and 11,725 is: 18,647.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,372.50 : 11,725 = 11,725 : x
  2. Step 2: Convert to fraction form
    7,372.50/11,725 = 11,725/x
  3. Step 3: Cross multiply
    7,372.50x = 11,725 × 11,725
  4. Step 4: Simplify right side
    7,372.50x = 137,475,625
  5. Step 5: Solve for x
    x = 137,475,625/7,372.50
  6. Step 6: Final answer
    x = 18,647.08

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.