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Finding the Third Proportional to 3,924 and 6,238.50

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Solution

The third proportional to 3,924 and 6,238.50 is: 9,918.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,924 : 6,238.50 = 6,238.50 : x
  2. Step 2: Convert to fraction form
    3,924/6,238.50 = 6,238.50/x
  3. Step 3: Cross multiply
    3,924x = 6,238.50 × 6,238.50
  4. Step 4: Simplify right side
    3,924x = 38,918,882.25
  5. Step 5: Solve for x
    x = 38,918,882.25/3,924
  6. Step 6: Final answer
    x = 9,918.17

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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.