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Finding the Third Proportional to 3,622.50 and 7,938

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Solution

The third proportional to 3,622.50 and 7,938 is: 17,394.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,622.50 : 7,938 = 7,938 : x
  2. Step 2: Convert to fraction form
    3,622.50/7,938 = 7,938/x
  3. Step 3: Cross multiply
    3,622.50x = 7,938 × 7,938
  4. Step 4: Simplify right side
    3,622.50x = 63,011,844
  5. Step 5: Solve for x
    x = 63,011,844/3,622.50
  6. Step 6: Final answer
    x = 17,394.57

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.