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Finding the Third Proportional to 3,655.50 and 7,902

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Solution

The third proportional to 3,655.50 and 7,902 is: 17,081.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,655.50 : 7,902 = 7,902 : x
  2. Step 2: Convert to fraction form
    3,655.50/7,902 = 7,902/x
  3. Step 3: Cross multiply
    3,655.50x = 7,902 × 7,902
  4. Step 4: Simplify right side
    3,655.50x = 62,441,604
  5. Step 5: Solve for x
    x = 62,441,604/3,655.50
  6. Step 6: Final answer
    x = 17,081.55

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.