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Finding the Third Proportional to 7,798.78 and 16,729.03

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Solution

The third proportional to 7,798.78 and 16,729.03 is: 35,885.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,798.78 : 16,729.03 = 16,729.03 : x
  2. Step 2: Convert to fraction form
    7,798.78/16,729.03 = 16,729.03/x
  3. Step 3: Cross multiply
    7,798.78x = 16,729.03 × 16,729.03
  4. Step 4: Simplify right side
    7,798.78x = 279,860,486.56
  5. Step 5: Solve for x
    x = 279,860,486.56/7,798.78
  6. Step 6: Final answer
    x = 35,885.16

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.